名词性交; 性关系

1. 性关系：4. nou [情欲] sex | 性关系 : sexual intercourse | 5. nou [性质]

1. 性交;性行为;性关系
    Sexual intercourse is the physical act of sex between two people.

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: intercoursesex actcopulationcoituscoitionsexual congresscongresssexual relationrelationcarnal knowledge