英语词汇air sac怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	air sac
释义	air sacn. an extension of the lungs in birds or of the tracheae in insects (某些鸟类、昆虫的)气囊
随便看	s/he she shea shea-butter sheading sheaf shealing shear shearer shearling shearwater sheath sheathe sheathing sheath knife sheathless sheave sheave sheaves shebang shebeen she'd shed shed shedder

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