1. Positive opinion: The reviewer thinks that the paper or manuscript is of high quality, complete in content, clear in structure and rigorous in argumentation, which meets the requirements of the journal. In this case, the reviewer usually suggests accepting the paper or manuscript.
2. Negative opinion: The reviewer thinks that the research method is not rigorous, the data analysis is incorrect, and the discussion is insufficient. In this case, the reviewer will put forward specific suggestions for revision and ask the author to revise and resubmit.
3. Neutral opinion: the reviewer's evaluation of the paper or manuscript is moderate, and there is neither obvious positive evaluation nor clear negative evaluation. In this case, the reviewer may make some suggestions for improvement, but he will not strongly ask the author to make changes.
4. There are different opinions: the reviewer gives positive comments on some parts of the paper or manuscript, while giving negative comments on other parts. In this case, the reviewer will make specific suggestions on all aspects of the paper or manuscript.
5. Rejection: The reviewer thinks that the quality of the paper or manuscript does not meet the requirements of the journal, or there are serious problems that cannot be solved through revision. In this case, the reviewer will suggest rejecting the paper or manuscript.
6. Opinions that need further study: The reviewer thinks that the research content of the paper or manuscript has certain value, but it needs further study and verification. In this case, the reviewers will put forward specific research directions and suggestions.