blastochore

例句：

1. 1. The blastocyst is the first stage of human development.
   囊胚是人类发展的第一阶段。
2. 2. The embryonic stem cells are used to treat various diseases.
   胚胎干细胞被用来治疗各种疾病。
3. 3. The blastocyst implantation is a crucial step in pregnancy.
   囊胚植入是怀孕过程中的关键步骤。