What I don't want your program to do is crash when that happens. Or run forever.

当这种问题出现时程序崩溃,或者一直运行下去。

麻省理工公开课 - 计算机科学及编程导论课程节选

It could run and give you the right answer, it could crash, it could loop forever, it could run and apparently give you the right answer.

它可能会正确运行,并返回给你一个正确的答案，它可能会崩溃，它可能会一直运行下去，它可能会运行并给你正确的答案。

麻省理工公开课 - 计算机科学及编程导论课程节选

We're not going to run around in circles forever.

我们并不想一直徒劳无益。

哈佛公开课 - 计算机科学课程节选