英语短语词组词汇yolk sacs的音标、释义、翻译、用法及例句-英语短语词组词典-福建条码网

短语	yolk sacs
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	a trifle at right angles (to sth) at right angles（或a right angle） a trip/walk down memory lane at risk at-risk children / patients / groups etc at risk (from/of sth) at risk to oneself（或something） at risk to yourself/sb/sth a Triton of/among the minnows at roost at root a trouble shared is a trouble halved at sb's beck and call at sb's behest at sb's bidding at sb's command at sb's convenience at sb's discretion at sb's disposal at sb 's disposal at sb's expense at sb's hands at sb's heels at sb's instance

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