When your paper is rejected, you may feel disappointed and depressed. However, this does not mean that your research is worthless or that you can't try to publish it again. In fact, many successful researchers have experienced the rejection of papers. In this case, you can apply to the editor for a review.

First of all, you need to calm down and read the reviewer's comments carefully. These opinions usually point out the problems in your paper and how to improve them. You should take these opinions seriously and revise your paper according to them.

Secondly, you need to prepare a letter of complaint. This letter should be concise and explain why you think your paper is worth rethinking. You can quote the reviewers' opinions and explain how you revised the paper according to these opinions. In addition, you can provide some new evidence or data to support your point of view.

When writing a complaint letter, you should pay attention to the following points:

1. Be polite and respect others. Even if you disagree with the critics, you shouldn't attack or belittle them.

Don't overemphasize your contribution. Commentators have read your paper and know how important your research is. Therefore, there is no need to repeat this point.

Don't try to persuade critics to change their views. Reviewers are usually very professional and experienced people, and they will not change their views easily. Instead, you should focus on explaining how you revised the paper according to their opinions.