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单词
yolk stalk
释义
yolk stalk
n.
(名词)
A narrow ductlike part that connects the yolk sac to the middle of the digestive tract of an embryo.
卵黄柄:连接卵黄囊和胚胎消化道中部的狭窄的管状部分
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更新时间:2025/1/6 13:37:11