Copying papers to lose weight is a violation of academic integrity, so we don't encourage or support this behavior. However, we can provide some tools and methods to help you check and reduce the repetition rate of your papers to ensure that your papers are original.

1. Plagiarism detection software: There are many plagiarism detection software that can help you check the duplicate content in your paper. Some commonly used softwares include Turnitin, Grammarly and Copyscape. These softwares can scan your papers and compare them with other articles in the database to detect duplication.

2. Citation management tools: Using citation management tools can help you correctly cite other people's research results and avoid plagiarism. Some commonly used reference management tools include EndNote, Zotero and Mendeley. These tools can help you manage and organize references and automatically generate the correct reference format.

3. Language translation tools: If you need to quote foreign documents, you can use language translation tools to translate the original into your own language. This can ensure that your paper is original and avoid copying the original directly. Some commonly used language translation tools include Google Translation, DeepL and Baidu Translation.

4. Rewriting and Restatement: If you find that some sentences or paragraphs are similar to other articles, you can try to rewrite and restate them to make them more in line with the theme and style of your paper. This can ensure that your paper is original and avoid copying other people's views and arguments directly.