in his stay与during his stay的用法

问题描述

不理解下面的正句与误句：

正：He visited some interesting places during his stay in Janpan.

误：He visited some interesting places in his stay in Janpan.

疑惑：in his stay与during his stay的区别在哪里？为什么句子中可以用during his stay，但不可以用in his stay？请解析，谢谢！

老师答疑

罗老师：

链接一篇出自英语语法网的文章，请看during和in的区别。