Modify for duplicate content: Modifying duplicate content is the most direct method. You can rewrite the repeated parts, or change the expression to avoid direct quotation and plagiarism.

Add references: you can add appropriate references to explain that the cited content is not from the original paper.

Machine weight reduction: Now some paper weight checking tools will provide machine weight reduction, such as papertime, but it also needs to be combined with manual modification to achieve the best effect.

Translation of foreign documents: translating the repeated contents into foreign documents and then back to Chinese can reduce the repetition rate of papers while keeping the meaning unchanged.

Reasonable use of charts: If there is too much repetition in the paper, you can consider converting some information into charts to reduce the amount of words used and the repetition rate.

Consult your tutor: If you are confused about the repetition rate of your paper, you can ask your tutor for help. They may provide some suggestions or guidance to help with the revision.