名词
中文翻译：潜水艇
同义词：
['submersible', 'submarine-type vehicle例句：1. The submarine was used to explore the deep sea.（这艘潜艇被用来探索深海。）']
例句：
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1. The submarine was used to explore the deep sea.
这艘潜艇被用来探索深海。
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2. The submarine's engine is underwater and needs to be repaired.
潜艇的发动机在水下，需要修理。
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3. The submarine has been successfully launched into the ocean.
这艘潜艇成功地被发射入海。