英语词汇yolk 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	yolk sac
释义	yolk sac n. 【动】 1.+of birds, reptiles, fishes卵黄囊 2.+of mammals(哺乳动物胚胎中无卵黄的)卵黄囊
随便看	an indrawn breath an inducement to do sth an inducement to sth a nine-day wonder a nine-foot drift of snow an inequality in sth an inestimable art collection an inexact science an infatuation for sb an infatuation with sb an infatuation with sth an infinitude of sth an infinity of sth an inflation rate of 2% an informed guess an infringement on sth an inherited disease an inimical foreign power an inlay of medieval glass an innocent bystander an inside cabin an instalment on sth an insulin injection an insult to sb an insult to sth

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