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

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	bode well/ill (for sb/sth) body and soul bog down bog in bog off bog sb / sth ↔ down bog sth/sb down (in sth) boil away boil down boil down to boil down to sth boiling point / freezing point / melting point etc boil over boil something down boil sth down (to sth) boil sth ↔ down boil sth↔down boil sth ↔ up boil sth↔up boil up boil with anger bold / calm / cool etc as you please bold stroke bollocks to you / that / it etc bolt of lightning

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