名词
中文翻译：水螅
同义词：
['hydra', 'hydroid', 'hydraphile例句：1. The hydra was a fascinating creature that lived in the ocean.（这个水螅是一种令人着迷的海洋生物。）']
例句：
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1. The hydra was a fascinating creature that lived in the ocean.
这个水螅是一种令人着迷的海洋生物。
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2.Hydras are known for their ability to regenerate lost limbs.
水螅因其再生失去肢体的能力而闻名。
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3.The hydra's tentacles were used as tools for communication and hunting.
水螅的触手被用作交流和捕猎的工具。