英语词汇“yolk-sac placenta”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	yolk-sac placenta
释义	yolk-sac placenta noun : a structure in some sharks resembling a placenta, consisting of the vascular embryonic yolk sac wall intimately associated with the vascular maternal uterine or oviducal wall, and serving to nourish the embryo
随便看	dirty allan dirty linen dirty old man dirty one's hands dirty pool dirty rice dis dis dis- disa disability disability disability clause disability insurance disable disabled disabled disablement disabler disabuse disaccharide disaccharose disaccommodate disaccord disaccredit

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