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

单词	branchial sac
释义	branchial sac branchial sac [′braŋ·kē·əl ′sak] (invertebrate zoology) In tunicates, the dilated pharyngeal portion of the alimentary canal that has vascular walls pierced with clefts and serves as a gill.
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