early 15c., "to join," from Latin copulatus, past participle of copulare "join together, couple, bind, link, unite," from copula "band, tie, link," from PIE *ko-ap-, from *ko(m)- "together" + *ap- (1) "to take, reach" (see apt). Sexual sense attested from 1630s. Related: Copulated; copulating.
双语例句
1. Whales take twenty-four hours to copulate.
鲸交配需要24小时。
来自柯林斯例句
2. During the time she is paired to a male, the female allows no other males to copulate with her.
雌性与雄性配对时，雌性不允许其他雄性与之交配。
来自柯林斯例句
3. Then the hybrids are allowed to self - copulate naturally, and several lines are established.