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

短语	yolk bag
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	at outs （〈北美〉on the outs） a tower of strength a tower of strength at pause at peace at port arms at present at press time at prime tense at quiet at railway speed a train of events a train of thought at random - a treat a treat at regular intervals at rest a trick knee / ankle / shoulder etc a trick question a question a trifle at right angles (to sth) at right angles（或a right angle） a trip/walk down memory lane at risk

英语短语词组词典共收录525608条英汉双解短语词组词条，基本涵盖了全部常用短语词组的翻译及用法，是英语学习的有利工具。