So this one is not a spoof, it's actually a pretty cute video and it offers us the opportunity to just take a look at some of the kinds of ideas we'll be looking at in this course.

这个就不是开玩笑了，它其实是个比较有趣的视频,它让我们有机会了解,在我们课堂上会讲到的一些思想。

哈佛公开课 - 计算机科学课程节选

So this is not all that interesting, but let's actually take a look at a 5th version of high that actually does something interesting.

这并不总是有趣的，但是当你看到该程序的第五个版本,会觉得有意思了。

哈佛公开课 - 计算机科学课程节选

PROFESSOR: -- that this is not a quick clicker question, so you actually need to maybe write something down to figure out the answer.

教授：这个问题不是一眼就能看出来的，你们需要在纸上写一写,才能得到答案。

麻省理工公开课 - 化学原理课程节选

Not so easy to see. All right, but this is actually a great one of those educational moments. This is a great example to think recursively. If I wanted to think about this problem recursively- what do I mean by thinking recursively?

看不太出来，好，但实际上是一个有教育意义的时刻,这是一个很好的关于递归的例子,如果我用递归的思想,去考虑这个问题-,我该怎么用递归去解决这个问题呢？

麻省理工公开课 - 计算机科学及编程导论课程节选