英语词汇“fetal sac”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	fetal sac
释义	fetal sac 基本例句胎囊 It involves removing a small amount of tissue called the chorionic villi, which is located on the outside of the fetal gestational sac and will later become the placenta.该检验将少量位于胚胎胎囊外部叫做绒毛膜绒毛的组织移除，该组织未来将成长为胎盘。
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