vaginal part of cervix

例句：

1. 1.The vaginal tissue is responsible for the exchange of gases between the body and the environment.
   阴道组织负责身体与环境之间的气体交换。
2. 2. The vaginal area is prone to infections due to its moist and warm environment.
   由于其湿润和温暖环境，阴道区域容易感染。
3. 3.During childbirth, the vagina stretches and dilates to allow the baby to pass through.
   分娩期间，阴道会伸展和扩张，以便婴儿通过。