blastocyst cavity

例句：

1. 1. The embryonic development of the human fetus is a complex process that involves several stages.
   人类胎儿的胚胎发育是一个复杂的过程，涉及多个阶段。
2. 2.During the early stages of pregnancy, the blastocyst cavity grows and expands to accommodate the developing embryo.
   在怀孕的早期阶段，囊胚腔会生长和扩张，以容纳正在发育的胚胎。
3. 3. The blastocyst cavity is an important structure in the development of the human embryo.
   囊胚腔是人胚胎发育过程中的一个重要结构。