If one animal or person copulates with another, they have sex. You can also say that two animals or people copulate.
例句
During the time she is paired to a male, the female allows no other males to copulate with her...雌性與雄性配對(duì)時(shí)，雌性不允許其他雄性與之交配。Whales take twenty-four hours to copulate.鯨交配需要24小時(shí)。