fornix of vagina

例句：

1. 1. The doctor performed a biopsy on the patient's vaginal fornix.
   医生对患者的阴道前庭进行了活组织检查。
2. 2. The vaginal fornix is an important part of the female reproductive system.
   阴道前庭是女性生殖系统的重要组成部分。
3. 3. During sexual intercourse, the vaginal fornix can be stretched and damaged.
   性交过程中，阴道前庭可能会被拉伸和损伤。