noun 下载 🔗分享 滋养层细胞，滋养外胚层。 The membrane of cells that forms the wall of a blastocyst during early pregnancy, providing nutrients to the embryo and later developing into part of the placenta. Examples : ""The trophoblasts, crucial in the early stages of pregnancy, nourish the developing embryo and eventually contribute to the formation of the placenta." " 滋养层细胞在怀孕早期至关重要，它们为正在发育的胚胎提供营养，并最终参与形成胎盘。 biology medicine anatomy physiology organ human body science biochemistry function 与AI对话词汇游戏阅读练习
