extramarital sex

Chinese attitudes towards sex have relaxed in recent decades , triggering a boom in extramarital relationships.

调查显示,39.7%的调查对象认为只要双方相爱,婚前性行为无可厚非, 而29%的人则认为婚前性行为是个人的私事.

An action for alienation of affection does not require proof of extramarital sex.

第三者插足构成侵权行为并不以婚外性行为为必要条件.

They had extramarital and premarital sex behavior as well as non-marriage sexual partners.

存在婚前,婚外性行为和多性伴现象.

Part ⅴ, sexual attitude, studies attitudes on premarital sex and extramarital sex for female graduate students, and reflects the "sex" concept and the "sexual" behavior attitude for female graduate student.

第五部分性观念，考察女研究生对婚前性行为和婚外性行为的态度，反映女研究生的性观念和对性行为的态度。

There are two ways of sexual vanguard, antemarital sex and extramarital sex. All of the behaviors can influence the population control.

性的突围有两种：婚前性行为和婚外性行为，二者都会影响人口的控制。