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词汇 blastosphere
释义 blas·to·sphere 英ˈblæstəˌsfɪə美ˈblæstəˌsfɪrAHDblăsʹtə-sfîr'
基本英英记法近义反义Thesaurus
囊胚¹⁰⁰

Noun:
early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage about eight days after fertilization implantation in the wall of the uterus occursblasto-胚芽-sphere⇒囊胚近义词 blastula胞胚
as in.fetus
同义词 blastula,embryodeveloping infant,fertilized egg
fetusnoun unborn young
blastula,developing infant,embryo,fertilized egg
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