The idea of a "code walkthrough" refers to the process of walking through your code verbally or visually with or without other people.

代码走查“的概念是单独或者和别人一起,通过查看或讨论学习你们的代码,的一个过程。

哈佛公开课 - 计算机科学课程节选

you can talk to them about problem sets or questions that you've been having about class work.

然后你就可以和他们讨论你在学习中遇到的问题了。

与教授的面谈 - SpeakingMax英语口语达人