intercourse
noun [ U ] uk/ˈɪn.tə.kɔːs/ us/ˈɪn.t̬ɚ.kɔːrs/
(SEX)
formal (also sexual intercourse)性交，交媾
the act of having sex
vaginal/anal intercourse 阴道／肛门交媾
Our survey reveals that most couples have intercourse once a week. 我们的调查表明大多数夫妻每周过一次性生活。
(CONVERSATION)
old-fashioned formal交流，往来
conversation and social activity between people