noun 下载 🔗分享 桑椹胚,实心胚 A spherical mass of blastomeres that forms following the splitting of a zygote; it becomes the blastula Examples : "After fertilization, the zygote divides repeatedly, forming a ball of cells called morulae before it develops into a blastula. " 受精后,受精卵会不断分裂,形成一个叫做桑椹胚的细胞团,之后才会发育成囊胚。 biology medicine anatomy organism physiology 与AI对话词汇游戏阅读练习