It could be, preconditions I want to have on input It could be, explanations of specific things you're doing.

也可以是我对输入的预期是什么,也可以是，对代码,正在进行的特定操作的解释。

麻省理工公开课 - 计算机科学及编程导论课程节选

So the interpreter is simply operating directly on your code at run time.

因此解释器在运行程序的时候,会直接的对你的代码进行操作。

麻省理工公开课 - 计算机科学及编程导论课程节选

OK? And in fact, if you look at the code up here, and it's on your handout, the very first one, x 1, right here- if I could ask you to look at it-- is a piece of code to do it. And I'm less interested in the code than how we're going to analyze it, but let's look at it for a second.

实际上，如果你看看,你们课堂发的材料上面的代码，第一页上的，就是那-,大家请看看实现的这一部分代码,我不太关心,我们会怎么解释这个代码,首先让我们先看看。

麻省理工公开课 - 计算机科学及编程导论课程节选