uterine orifice of uterine tube

例句：

1. 1.The doctor performed a hysterectomy to remove the uterine orifice.
   医生进行了子宫切除术以移除子宫开口。
2. 2. During labor, the uterine orifice is enlarged to allow for the delivery of the baby.
   在分娩过程中，子宫开口被扩大以允许婴儿的出生。
3. 3. After childbirth, the uterine orifice heals and returns to its normal size.
   产后，子宫开口愈合并恢复到正常大小。