So one of the things I want you to notice here is that testing and debugging are not the same thing. When we test, we compare an input output pair to a specification.

这里我想大家注意的一件事,就是测试和调试是不同的两件事情,我们测试的时候，我们把输入输出,跟程序的规格说明书对比下。

麻省理工公开课 - 计算机科学及编程导论课程节选

The danger is that it's being purified from patients that have a disease and so you want to make sure that there's not other diseases that are present in that sample at the same time.

危险在于,这是从带有疾病的病人,身上纯化出来,因此你想确保,在那个样本中不会同时,携带其它疾病

耶鲁公开课 - 生物医学工程探索课程节选

Even if you're in a room or a battlefield where people are dying at the same time as you, to your left and your right, dying is not and cannot be something that is a joint undertaking.

即便你处在房间或者战场上,有人和你同时同地死亡，就在你的身边死亡，死亡也不是你们共同完成的。

耶鲁公开课 - 死亡课程节选

There are certain occasions in which you first do A and then do B; that's not the same as first doing B and then doing A.

在有些特定的情况下,你先做 A 再做 B,和先做 B 再做 A 是不一样的

耶鲁公开课 - 基础物理课程节选