Fundus uteri

例句：

1. 1. The doctor performed a biopsy on the fundus uteri to diagnose the condition.
   医生对子宫底部进行了活检以诊断该病状。
2. 2.During labor, the fundus uteri is the part of the womb that contracts to push the baby out.
   在分娩过程中，子宫底是子宫的一部分，它会收缩以将宝宝推出。
3. 3.The fundus uteri is responsible for storing and releasing hormones during pregnancy.
   子宫底负责在怀孕期间储存和释放激素。