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
造句
用作名詞(n.)
The researchers say the females may have died of stress caused by aggressive male copulation attempts. 對此，研究人員表示，雌性蜥蜴可能是由于雄性蜥蜴富有侵略性的交配行為對其產生了巨大的壓力而死亡的。
The reproductive system has a complex innervation concerned in copulation and oviposition. 生殖系統有一個同交尾和產卵有關的復雜神經系統。