vaginal intercourse

• 阴道性交

vaginal intercourse的用法和样例：

例句

1. Almost half said they go without condoms when having vaginal sex.
   近一半的人说在进行阴道性交时不使用避孕套。
2. Small tears in the vagina during vaginal sex or in the rectum during anal sex allow STDs to get into your blood.
   阴道性交或肛交中致使的即便是轻微的皮肤破损都可能导致性传播疾病病毒进入血液中去。