v.交媾；交配；交尾
Mary did not want to copulate with her boyfriend before marriage 瑪麗不愿在結(jié)婚前與她的男朋友發(fā)生性關(guān)系。
The male bird performs a sort of mating dance before copulating with the female. 這種雄鳥在與雌鳥交尾以前要跳一種交歡舞。
