1
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading These are (1) the Holland, or _submarine_ type, and (2) the Lake, or _submersible_ type.
16
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
2
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading These are (1) the Holland, or _submarine_ type, and (2) the Lake, or _submersible_ type.
used before a singular noun to mean one of a group, when it is not a particular one
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
aboveprepositionUS /əˈbʌv/
higher than, or over, something
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
the form of “a” used before a word that begins with a vowel sound
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
used to join words or parts of a sentence that go together
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
apaceadverbUS /əˈpeɪs/
(poetic, literary) quickly
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
areauxiliary verbUS /ɑːr/
the form of “be” used with you, we, they, or a plural noun
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
artauxiliary verbUS /ɑːrt/
an old form of “are”, used with “thou”
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
at the same time that; because; in the way that
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
in or near a particular place or position
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
inflected form of “begin” — take the first step or steps in carrying out an action
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
bluntadjectiveUS /blʌnt/
having a broad or rounded end
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
a small vessel for travel on water
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
plural of “boat” — a small vessel for travel on water
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
a structure that has a roof and walls and stands more or less permanently in one place
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
past form of “call” — assign a specified (usually proper) proper name to
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
to be able to, or to be allowed to
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
cat-fish
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
a subdivision of a written work; usually numbered and titled
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
the past of “can”; used for possibility or polite requests
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
the skilled practice of a practical occupation
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
distinctiveadjectiveUS /dɪˈstɪŋktɪv/
of a feature that helps to distinguish a person or thing
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
divenounUS /daɪv/
a cheap disreputable nightclub or dance hall
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
having finished or arrived at completion
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
comparative of “easy” — posing no difficulty; requiring little effort
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
with ease (“easy” is sometimes used informally for “easily”)
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
divisible by two
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
quickly or rapidly (often used as a combining form)
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
plural of “feature” — a prominent attribute or aspect of something
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
firstadjectiveUS /fɜːrst/
preceding all others in time or space or degree
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
intended to be given to, or used by, somebody
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
come into the possession of something concrete or abstract
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
hasauxiliary verbUS /hæz/
the form of “have” used with he, she, it, or a singular noun
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
haveauxiliary verbUS /hæv/
used with a past participle to form the perfect tenses
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
the upper part of the human body or the front part of the body in animals; contains the face and brains
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
for this reason
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
HollandnounUS /ˈhɑːlənd/
a constitutional monarchy in western Europe on the North Sea; half the country lies below sea level
From this reading These are (1) the Holland, or _submarine_ type, and (2) the Lake, or _submersible_ type.
HOW
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
hullnounUS /hʌl/
dry outer covering of a fruit or seed or nut
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
inside something, or within a place, period, or state
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
intoprepositionUS /ˈɪntuː/
moving to the inside of something
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
the form of “be” used with he, she, it, or a singular noun
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
a thing, animal, or idea already mentioned
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
keelnounUS /kiːl/
a projection or ridge that suggests a keel
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
plural of “kind” — a category of things distinguished by some common characteristic or quality
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
a body of (usually fresh) water surrounded by land
From this reading These are (1) the Holland, or _submarine_ type, and (2) the Lake, or _submersible_ type.
largeadjectiveUS /lɑːrdʒ/
above average in size or number or quantity or magnitude or extent
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
prefer or wish to do something
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
fail to keep or to maintain; cease to have, either physically or in an abstract sense
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
produced by a manufacturing process
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
plural of “make” — a recognizable kind
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
mergedadjectiveUS /mɜːrdʒd/
formed or united into a whole
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
(comparative of “much” used with mass nouns) a quantifier meaning greater in size or amount or extent or degree
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
being excited or provoked to the expression of an emotion
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
to a great degree or extent
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
in the historical present; at this point in the narration of a series of past events
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
belonging to, or connected with, somebody or something
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
touching and supported by a surface
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
used to join alternatives or possibilities
From this reading These are (1) the Holland, or _submarine_ type, and (2) the Lake, or _submersible_ type.
a judge of a probate court
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
preceding all others in time or being as first made or performed
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
something determined in relation to something that includes it
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
being or occurring in fact or actuality; having verified existence; not illusory
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
a charge of ammunition for a single shot
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
Identical; not different.
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
seaworthyadjectiveUS /ˈsiːwɔːrði/
fit for a sea voyage
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
any spatial attributes (especially as defined by outline)
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
shapedadjectiveUS /ʃeɪpt/
shaped to fit by or as if by altering the contours of a pliable mass (as by work or effort)
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
being or characteristic of a single thing or person
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
sinkverbUS /sɪŋk/
fall or descend to a lower place or level
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
speedyadjectiveUS /ˈspiːdiː/
characterized by speed; moving with or capable of moving with high speed
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
having strength or power greater than average or expected
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
SUBMARINEnounUS /ˈsʌbməriːn/
a submersible warship usually armed with torpedoes
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
submergeverbUS /səbˈmɜːrdʒ/
sink below the surface; go under or as if under water
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
submersiblenounUS /səbˈmɜːrsɪbəl/
an apparatus intended for use under water
From this reading These are (1) the Holland, or _submarine_ type, and (2) the Lake, or _submersible_ type.
superstructurenounUS /ˈsuːpərstrʌktʃər/
structure consisting of the part of a ship above the main deck
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
the outer boundary of an artifact or a material layer constituting or resembling such a boundary
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
used to introduce what somebody said, thought, or felt
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
used before a noun that is already known, already mentioned, or the only one of its kind
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
belonging to the people or things already mentioned
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
in or at that place or location
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
the plural of “this”: the people or things near, or just mentioned
From this reading These are (1) the Holland, or _submarine_ type, and (2) the Lake, or _submersible_ type.
used for a person or thing that is near, or that has just been mentioned
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
an instance or single occasion for some event
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
used before the base form of a verb to make the infinitive
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
inflected form of “tell” — express in words
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
the cardinal number that is the sum of one and one or a numeral representing this number
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
a subdivision of a particular kind of thing
From this reading These are (1) the Holland, or _submarine_ type, and (2) the Lake, or _submersible_ type.
underseaadjectiveUS /ˌʌndərˈsiː/
beneath the surface of the sea
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
precisely as stated
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
wasauxiliary verbUS /wɑːz/
the past form of “be” used with I, he, she, it, or a singular noun
From this reading This was done to get a boat that was as strong and as speedy as and could dive like the Holland, and to have at the same time a boat that was as fast and as seaworthy on the surface as the Lake.
the speaker together with one or more other people
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
wereauxiliary verbUS /wɜːr/
the past form of “be” used with you, we, they, or a plural noun
From this reading As the art of undersea boat building moved on apace, the two kinds of craft began to lose their original distinctive features and were merged into a single type.
whileconjunctionUS /waɪl/
during the time that
From this reading Now, the Holland boat has a shape very much like a cat-fish—that is, it has a blunt round head—and hence it can dive easily; while the Lake is shaped more like an ordinary boat and has a large _superstructure_, as that part above the _hull_[16] is called, and this makes it easier for the Lake to _submerge_—that is, sink on an even keel.
buildings for carrying on industrial labor
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
the person or people being spoken to
From this reading HOW A REAL SUBMARINE IS MADE AND WORKS AS we told you in the first chapter, there are two kinds of undersea boats.
