英语词汇“branchial sac”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	branchial sac
释义	branchial sac noun : the dilated pharyngeal part of the alimentary canal in tunicates that has vascular walls pierced with clefts and functions as a gill
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