amniotic cavity

例句：

1. 1. The fetus is developing in the amniotic cavity.
   胎儿正在羊膜腔中发育。
2. 2.During labor, the doctor will need to access the amniotic cavity to remove the placenta.
   在分娩过程中，医生需要进入羊膜腔以移除胎盘。
3. 3. The amniotic cavity is a space inside the mother's womb that contains the baby's fluids and waste products.
   羊膜腔是母亲子宫内的一个空间，里面包含婴儿的液体和废物。