1. When they do, the mating frenzy begins, and it can last up to three weeks. 当一切触发的时候，狂暴的交配开始了，它可维持长达三周。
2. A dragon fathers an elephant when he mates with a pig, and he sires a racehorse, after mating with a mare. 一条龙当它与一只猪交配时候生出一头大象，在与母驴交配之后就生下一头赛马。
3. "Assembly in the small" includes basic engineering models of part mating, and an explanation of the Remote Center Compliance. “小范围组装”包括零件配合的基本工程模型，以及对遥轴顺应性装置的解释。
英英解释
n.
1. the act of pairing a male and female for reproductive purposes
