common vaginal tunic

例句：

1. 1. Thecommon vaginal tunic is athin, elastic band that connects thevagina to the uterus.
   常见的阴道系膜是连接阴道和子宫的一条薄而有弹性的带子。
2. 2.During childbirth, the common vaginal tunic helps to support and protectthe cervix.
   分娩期间，常见的阴道系膜有助于支撑和保护宫颈。
3. 3.A common vaginal tunic canbe a cause of discomfort during sexual intercourse.
   常见的阴道系膜在性交时可能会引起不适。