premarital sex behavior婚前性行为
adolescent premarital sex婚前性行为
premarital sex relation婚前性关系
Most Americans had premarital sex的美国人有过婚前性行为
Sexual intercourse behavior and substance abuse in the adolescents were fewer than abroad similar studies, but the growth rates of premarital sex and its adverse consequences could not be ignored, such as unintended pregnant and forced sex.
青少年性行为和成瘾物质滥用的发生率较低,但增长速度和婚前性行为的诸多不良后果不容忽视。
参考来源 - 我国艾滋病孤儿身心健康、教育干预与青少年艾滋病知、信、行研究