种马 成年公马英释中释
Horses rarely climax, despite masturbating dozens of times per day—so what motivates the dalliance of a stallion or, for that matter, a mare?.马很少高潮，尽管它们每天自慰大把的时间——所以就此而言，是什么激发了种马或母马的这种闲情逸致？
