labium uteri

例句：

1. 1. The doctor examined the labium uteri during her examination.
   医生在检查时检查了子宫口。
2. 2. During childbirth, the labium uteri can become inflamed and painful.
   分娩期间，子宫口可能会发炎和疼痛。
3. 3. The labium uteri is a sensitive area that needs to be cleaned regularly.
   子宫口是一个敏感区域，需要定期清洁。