the reason for 是指...的原因例:The reason for my mistake is that I was not careful enough.
一般不用the reason of 用by reason of 是because of 的意思,因为...例:By reason of the rain,we had to stop going out.
the reason to
the reason to quit 放弃的理由吗
The Reason To Leave 抛弃的理由
the reason to stay 留下的原因