All right. The rules, though, are, they can only move one disk at a time, and they can never cover up a smaller disk with a larger disk. OK. Otherwise you'd just move the whole darn stack, OK?

好，规则是，他们只能一次挪动一个盘子,并且不能把大盘子放在小盘子上,不这样的话你就直接,把这一堆盘子都挪过来了对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

The upside of it of course though is that's it's pretty darn easy to implement.

尽管实现起来,相当容易。

哈佛公开课 - 计算机科学课程节选

All right. I tried it on 2, I surely didn't expect a precise and exact answer to that but I got something, and if you square this, you'll find the answer kept pretty darn close to 2.

好，我试试求2的平方根,我当然不希望得到一个完全准确的答案了,但是我得到了一个近似值，试试将这个数平方一下,你会发现结果和2相当接近。

麻省理工公开课 - 计算机科学及编程导论课程节选

That's a pretty darn big difference.

这是一个极其大的区别。

麻省理工公开课 - 计算机科学及编程导论课程节选