The city at one time must have been prosperous,for it enjoyed a high level of civilization.
问题描述：
The city at one time must have been prosperous,for it enjoyed a high level of civilization.
for能不能改成because啊?
这样的for具体有什么用法呢?
答
因为.不能该为because.because:因为.强调直接原因.since:因为.强调双方已知无需用说明的事由.for:因为.强调一种推测.但不一定是事实.as:强调一般因果关系.用于句首.Because she's ill,she can't go to my home.因为...