the reason for 主要指的是某种现象出现的原因；而the reason of 主要是指某条原因。
the reason for 的相关词组和句子：
1、The main reason for 提示下文信息重要
2、the reing reason for 说明
3、the fundamental reason for existence 存在的根本原因
4、I think that is the reason for and the meaning of her death.
我认为这是卡西为什么死去的原因, 它死的意义也在于此。
5、"The reason for this is that we must put our country's interest first, " he added.
他接着说道，“这样做的理由是我们必须把我们的国家利益放在第一位。”
6、The reason for describing it as a separate scenario is because it is different from an applicationdesign point of view.
将其作为一种单独的场景进行描述的原因是，从应用程序设计的角度来看，它有所不同。
the reason of 的相关词组和句子：
1、by the reason of 由于
2、The reason of failure 失败的原因
3、The reason of application 申请原由
4、the reason of unemployment 失业原因
5、the reason of backward 滞后原因
6、The reason of the law ceasing,the law itself ceases.
法律理由消失,法律本身也不存在。
7、Tiredness ------ It is the reason of getting married; also the reason of getting divorced.
疲倦 ------ 是结婚的理由, 也是离婚的理由。
8、The reason of the investigation was not clear yet.
目前此次调查的具体原因尚不清楚。