Tmp

报告类

A 原因+解决方法

B 原因+影响

混合类

一个报告类问题+一个议论类问题

原因+积极/消极

表达原因

  • The reason for this
    • are as follows
    • is obvious
    • is not for to seek
    • is that
  • There are three reasons for this
  • We have good reason to believe that