名词
中文翻译：鱼鳍
同义词：
['fin', 'fins', 'appendages']
例句：
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1. The fish had a long, sleek body with two large, curved fins.
这条鱼身体长而光滑，有两个大而弯曲的鳍。
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2. The dolphin has a unique ability to change the shape of its fins to navigate through water.
海豚有独特的能力改变鳍的形状来在水中导航。
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3. The whale's tail is made up of many small fins that help it swim efficiently.
鲸鱼的尾巴由许多小鳍组成，帮助它高效游泳。