I have demonstrated/shown that ...
(Example: I have shown here just a few examples of the process.)
This shows how ...
(Example: This shows how it works.)
So it would appear that ...
(Example: So it would appear that the condition is now going increasingly worse.)
This goes to show that ...
(Examples: This goes to show that it's not what he has said.
(All of which goes to show that they've already know that.)
To sum up
To summarize, ...
In a nutshell, ...
The key to the argument is ...
In any case ...
Basically ...
In brief ...
In short ...
根据具体问题类型，进行步骤拆解／原因原理分析／内容拓展等。
具体步骤如下：／导致这种情况的原因主要是……