名词
中文翻译：臀鳍同义词
同义词：
['tail fin', 'caudal fin']
例句：
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1. The fish swims with its tailheld high in the water.
这条鱼在水中游动，尾巴高高地翘起。
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2.The scientist observed the fish's tailfin as it moved through the water.
科学家观察了这条鱼在水里移动时尾巴的鳍。
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3. Thefish was caught by anet and its tail finwas damaged.
这条鱼被网捕获，尾巴的鳍受损了。