And so frequently what we try and do is, we take a new problem and map it onto an old problem so that we can use an old solution.

我们经常做的一件事就是，我们处理一个新问题时,把它归结为一个老问题,以便我们能采取老的解决方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

There are also related reading materials quizzes exams problem sites, solution sites and so on.

还有相关阅读材料，小测,考试，提出问题网站，答案网站等。

麻省理工公开课 - 媒体、教育、市场课程节选

So the game is not just to somehow or other get the solution to the problem set but to fully understand how it's done, and the TAs will be there to help you.

所以,这个过程不仅仅是,通过某种方式解出题目,还要全面理解解题的过程,助教会帮你们的

耶鲁公开课 - 基础物理课程节选

So this is version two of the swap function and, in fact, it is almost identical, this is before, this is after, before, after and it looks like the solution to this problem that we've been revisiting a couple of times now is just to do what?

这个swap函数的第二个版本，实际上，这几乎是一样的，这是之前的，这个之后的，之前的，之后的，这看起来像是这个问题的解决方案,我们一直多次访问它,目的是什么呢？

哈佛公开课 - 计算机科学课程节选