How do I use it?

现在这里又第二个关键词？

麻省理工公开课 - 计算机科学及编程导论课程节选

And the main one is, I get to just decide, how do I want to use this, and call it.

但是这真的会有一些好处，最重要的一点是，我需要决定，我要如何来使用这个方法，以及如何来调用它。

麻省理工公开课 - 计算机科学及编程导论课程节选

And by that, I mean, not how much memory do I need to store the size of the input, it's really how much internal memory do I use up as I go through the computation?

需要占用多少内存,我意思并不是，存储输入需要多少内存,而是当我完成这个？

麻省理工公开课 - 计算机科学及编程导论课程节选

What you're much better at doing is saying how do I take the problem I've got and map it into a class of algorithms about which I know and use the efficiencies of those to try and figure out how to make it work.

当你碰到问题的时候,更好的方法是把遇到的问题映射,到已经设计好的算法中去,并用这些算法来提高效率,来保证问题得到解决。

麻省理工公开课 - 计算机科学及编程导论课程节选