名词
中文翻译：Unknown
同义词：
['submarine', 'submersible', 'diver']
例句：
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1. The submarine was designed to explore the deep sea.
这艘潜艇被设计来探索深海。
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2. The submersible was used to study underwater creatures.
这个潜水器被用来研究水下生物。
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3. The divers were skilled at diving and exploring the wreckage.
潜水员们擅长潜水和探索沉船遗迹。