This second chimpanzee is not a relative of the first chimpanzee and they've never seen each other before.

这只黑猩猩跟第一只黑猩猩,没有血缘关系,它们以前也从来没见过面。

耶鲁公开课 - 心理学导论课程节选

And he'd never,rather like Louis-Napoleon, had hardly ever been in Paris before; he really hadn't,I don't think,ever.

他不像路易·拿破仑,以前很少到过巴黎,他是从来没去过

耶鲁公开课 - 1871年后的法国课程节选

This had never happened in an English class before.

这种情况在以前的英语课上从来就没发生过！

耶鲁公开课 - 文学理论导论课程节选

It's something that I wouldn't have done before.

我以前从来不会这么做的。

麻省理工公开课 - 媒体、教育、市场课程节选

I've never done this sort of thing before."

我从来没有做过这事以前“

耶鲁公开课 - 死亡课程节选