婚前: before marriage; premarital有: 5年 fifteen years过: cross; pass性关系: sexual intercourse; carnal k ...婚前性关系: premarital sex relation乱交与婚前性关系: casual and premarital sex性关系: sexual intercourse; carnal knowledge; sexual relationships 与 ... 发生性关系 have carnal knowledge of; have sex with sb超显性关系: overdominance relation传递性关系: transitive relations单线性关系: single linear relationship电中性关系: electroneutrality relation定性关系: qualitative relationship动物性关系: sexual relationship in animals; ual relationshiin animals对偶性关系: duality relation放射性关系: radioactive relationship非加性关系: nonadditive relation非线性关系: non linear relation; non-linear relatio; nonlinear relationship负线性关系: negative linear relationship恒等性关系: relation of identity婚外性关系: sexual relations outside marriage机械性关系: mechanical relationship加性关系: additive relation两性关系: sexual relations秘密性关系: secret sex齐性关系: homogeneity relation