I will never forget the days during which I worked

问题补充：

I will never forget the days during which I worked in the school麻烦翻译下意思,再把句子还原成介词没有提前的样子

答案：

我永远不会忘记我曾经在学校工作的日子.

I will never forget the days,I worked in the school during these days.