caudal fin

同根派生

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英汉例句

用作名詞 (n.)

• The lower lobe of the deeply forked caudal fin is longer than the upper lobe.
  尾鰭深叉型，下葉比上葉長。
• Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin.
  東半球的淡水鲇魚，躰表無鱗，有類似鰻魚尾鰭的很長的臀鰭。

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