response to the peer review of ZhaoHong (by zhuoming)

In the peer review, the most right thing zhaohong has mentioned is that I am off topic as I had not read the three topics carefully. So I have done a great editing again in the second draft. And as ZhaoHong said, the beginning is a funnel introduction, however, I found the funnnel introduction is a little bit long and I should have focued on the discussion of the subtopic, so I just cut some down.
Another thing I have added is the expression usage and I found the structure of the passage becomes more clear after this and I will pay attention to this when I am writing a passage in the future. Even though there is unity in paragraghs, I still think some discussions are too detailed, which makes some paragraphs too long than them should be, so I just cut off the unnecessary setences.
Finally, thank ZhaoHong for his review, he had found a lot of disadvantages that I can not find myself.I will take care of these later I write other passage.