If you can read the code a year later, even code you wrote yourself, it's a good sign that you put good comments in, right?

如果你还能读懂1年前的代码，就算是你自己写的代码，这也说明了你放进去的注释,已经非常好了，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

Give you some examples. What have we talked about? We've talked about things like using comments to highlight what you're doing in the code, to make it easier to debug.

给大家举些例子,我们一直在强调什么来着？,我们讲过要用注释来说明,你在代码中进行的操作，以便于调试。

麻省理工公开课 - 计算机科学及编程导论课程节选