名词
中文翻译：海牛
同义词：
['sea mammal', 'marine mammal']
例句：
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1.The sea cow is a fascinating creature that lives in the ocean.
海牛是一种令人着迷的海洋生物。
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2.Sea cows are known for their unique adaptation to life in the deep sea.
海牛以其独特的深海适应能力而闻名。
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3.In the wild, sea cows often hunt for food on the open sea.
在野外，海牛经常在开阔的海域寻找食物。