be set in和be set on 的区别?
问题描述：
be set in和be set on 的区别?
答
be set in 以…为背景；以…为场景
Doors and windows,big or small,can be set in the walls as required.
还可以根据需要在墙上安装大大小小的门窗.
be set on决心做某事