在每一次物种大灭绝后，都有一次突然的进化爆发，因为会有新物种出现来填补灭绝创造的生态位。

Following each mass extinction, there is a sudden evolutionary burst as new species develop to fill the ecological niches opened by the event.

youdao

每一次直觉都是死路一条，每一次假设都是死胡同。

Every hunch led to a blind alley and every hypothesis to a dead end.

youdao

在你第一次考试前12周，把每一次考试的日期和时间记录在你的计划或日记本上，并拷贝一份贴在家里的墙上。

About 12 weeks before your first exam, record the dates and times for each of your exams in your planner or diary and make a copy to put on your wall at home.

youdao

Part of it is, it takes me an hour and half to settle myself down enough, that I'm actually paying attention and, be more aware of what happening.

每一次，都需要一个半小时,来让我的头脑镇静下来，然后我才能真正地集中注意，感受身边发生的事情。

普林斯顿公开课 - 人性课程节选

I would be--every 5 minutes that person will die, we will have a new person, despite having the same personality.

我会--，每过5分钟,那个人就会死一次，新的一个人又产生了，只不过他拥有同样的人格。

耶鲁公开课 - 死亡课程节选

We said each of the merge operations O was of order n. But n is different. Right?

注意这里发生了什么,我们说过每一次合并操作的复杂度都是？

麻省理工公开课 - 计算机科学及编程导论课程节选