what is the reason for有没有固定句式

Question

如题所述

Answer 1

what is the reason for
可以作为固定模式
What's the reason for sth?
What's the reason for his success?
他成功的原因是什么？
The reason for sth is ..
举例：
The reason for the accident is that the man drove too fast.
这个事故的原因是这个男人开得太快了。