“胚胎由此发育”例句

单词 胚胎由此发育 例句 DEFINITIVE EXAMPLES 权威例句〔blastoderm〕The layer of cells formed by the cleavage of a fertilized mammalian egg. It later divides into the three germ layers from which the embryo develops.胚盘：由哺乳动物受精卵分裂而形成的细胞层。...