vaginal portion of cervix

例句：

1. 1. The vaginal area is the part of the body where the female reproductive organs are located.
   阴道是女性生殖器官所在部位。
2. 2.During childbirth, the vagina stretches and dilates to accommodate the baby's head.
   分娩过程中，阴道会拉伸和扩张以容纳婴儿的头部。
3. 3. Vaginal discharge is normal during menstruation and can indicate an infection if it becomes excessive or changes in color.
   月经期间有正常的阴道分泌物是正常的，但如果分泌物过多或颜色变化，可能是感染的迹象。