And will make mistakes. And therefore, you write your programs so that catastrophes don't occur when those mistakes are made.

就是人是很愚蠢的，会犯错误的，因此，你要这样设计你的程序,以达到当犯错误时避免大事故的目的。

麻省理工公开课 - 计算机科学及编程导论课程节选

there would be very, very possibly harmful events that will occur if we don't address it soon.

如果我们不尽快解决，很可能有非常非常有害的事情发生。

全球变暖和发达国家 - SpeakingMax英语口语达人

Remember that these cells are relatively large compared to bacteria and so diffusion doesn't occur very quickly over this length scale.

要知道这些细胞相对细菌而言,还是比较大的,扩散作用在这种尺度上,发生得不是那么快

耶鲁公开课 - 生物医学工程探索课程节选

Back to this graphic again: unpredictable food supply occurred on the left but doesn't occur on the right.

再回到这张图,对左边的人而言,食物供给难以预计,而右边却并非如此

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

They are supposed to take that light out, but maybe by the end of the semester a miracle will occur. So why don't you look over here.

他们应该把灯关掉，但是可能直到期末这个奇迹,才会发生，所以，你们看这边吧。

麻省理工公开课 - 固态化学导论课程节选

And when I go to the A-1 Toyota for my service or to buy my new Camry, which I've done every four years for the last two decades, I don't always think of a slave market but it does occur to me that--.

当我去丰田A1店,接受服务或购买我的新佳美的时候,过去二十年中我每四年都会去一次,我不是总会联想到奴隶市场,但我确实曾经那么想过

耶鲁公开课 - 美国内战与重建课程节选

You will like using "there is no" because it helps you to explain when you don't want something to occur in a situation.

你会喜欢“there is no”句型的，因为它可以用来表达你不希望在某种情况下发生某事。

There is no 课堂 - SpeakingMax英语口语达人