They sing by striking their flippers against their chests to hit their pharyngeal pouches, balloon-like extensions of the trachea that are unique to Odobenus and that also serve as flotation devices.
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牠们用鳍拍胸膛,打击咽囊,也就是气管的延伸,状似汽球,是海象独有的特徵,同时也有漂浮的作用。
单词 They sing by striking their flippers against their chests to hit their pharyngeal pouches, balloon-like extensions of the trachea that are unique to Odobenus and that also serve as flotation devices. 的词典定义。@海词词典-最好的学习型词典
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