1. 性交：sewn 缝制 | sex act 性交 | sex appeal 吸引力
2. 性行为：公司法:Company Act | 性行为:Sex Act | 真实义务:true obligation
noun
1. the act of sexual procreation between a man and a woman
the man''s penis is inserted into the woman''s vagina and excited until orgasm and ejaculation occur
Synonym: sexual intercourseintercoursecopulationcoituscoitionsexual congresscongresssexual relationrelationcarnal knowledge