Rejection is normal, even for experienced authors. After receiving the rejection notice, you need to thank the magazine for its comments, and then reflect and improve according to the comments.

If it is mentioned in the review comments that "it is not suitable for publication in this journal", it usually means that the theme, research direction or field of the paper does not meet the positioning of this journal. In this case, the following countermeasures can be considered:

1. Re-select contributors: according to the review opinions, re-find journals or platforms that better match the theme, research direction or field of the paper for submission.

2. Revise the paper: according to the review comments, revise and improve the paper to make it more in line with the requirements of the journal or platform.

3. Complaint: If you think that the review opinions are not completely correct, or you think that your paper has enough academic value, you can complain to the journal or platform and provide more evidence and reasons to support your paper.

No matter which way you take, you need to be calm and patient, carefully analyze the opinions of peer review, and actively communicate with editors of journals or platforms.