英语词汇“tracheal gill”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	tracheal gill
释义	tracheal gill noun : one of the external filaments or leaflike plates connected with the tracheae of the inside of the body that form part of the respiratory system of some aquatic insect larvae and nymphs but rarely persist in the adult
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