第一次投国外SCI 一审修改，有些地方不太明白什么意思？

　　第一次投国外SCI 一审修改，有些地方不太明白什么意思？。期刊：Materials and Design

邮件主题内容如下：

Dear Mr. ,

The reviewers have commented on your above paper. They indicated that it is not acceptable for publication in its present form.

However, if you feel that you can suitably address the reviewers comments (included below), I invite you to revise and resubmit your manuscript.

Please carefully address the issues raised in the comments.

If you are submitting a revised manuscript, please also:

a) outline each change made (point by point) as raised in the reviewer comments

AND/OR

b) provide a suitable rebuttal to each reviewer comment not addressed


Reviewers comments:


This work is meaningful but exists the following problems:
1. The reason for serrated flow curve is not evident and discussed deeply, therefore, relevant conclusion and highlight is not so suitable.

2. Low angle grain boundaries (LAGBs) were absorbed by random HAGBs while the strain is increased,low angle grain boundaries remain existed at small strain.

3. P.7,first paragragh,"This trend is related to the interior structure of samples which some complex Cr, Mo carbides were formed",where is the evidence?

4. P.11,"LAGBs slide to HAGBs slowly with twin GBs and the increase of temperature and HAGBs.",what does it mean?

请问：第1. 2. 4怎么回答比较好？第二点是让我解释的意思吗？

请多多指教！

谢谢！
===有问必答===

主要是第二条不知道是在质疑我的观点，还是让我解释呢?
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第二条 跟你的表述一致吗？如果不一致就是不同意你的观点。