英语语法分析

Whales take twenty-four hours to copulate.

鲸用二十四小时来交配。

《柯林斯英汉双解大词典》

During the time she is paired to a male, the female allows no other males to copulate with her.

雌性与一雄性配对时，雌性不允许其他雄性与其交配。

《柯林斯英汉双解大词典》

I HAD never given much thought to how dolphins copulate, much less seen them doing it.

我从来没有如此关注过海豚的繁殖，因为几乎看不到它们繁殖的过程。