英语短语词组词汇yolk sac的音标、释义、翻译、用法及例句-英语短语词组词典-老街网

短语	yolk sac
释义	yolk sac, yolk bag 【胚胎学】卵黄囊(从脊椎动物胚胎的中肠脐伸出的膨大的胚外囊体，富含卵黄) 卵黄囊(大多数哺乳动物胚胎中不含卵黄的、在胚胎发育早期变为退化器官的同源器官)
随便看	sittings sitting tenant sitting tenants sitting trot sitting trots sitting with nelly sitting (或 sit) pretty sit to an artist Sittoung sit-tragedy Sittwe situate situated situates situating situation situational situation comedies situation comedy situation-display tube situationer situation ethics situationism situationisms situationist

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