Code walkthrough-review the code with an explanation of how it all fits together so you can easily extend it for other types of metadata and sources.

代码详解—本部分详细解释源代码各部分如何相互配合，以便您可以针对其他类型的元数据和源轻松扩展它。

youdao

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