1. Do a good job of literature review: Before writing, make an in-depth literature review of the research in related fields, understand the previous research results and viewpoints, and avoid repeating others' research in your own research.

2. Innovative thinking: In the process of writing, try to put forward your own opinions and ideas instead of just repeating others' opinions. This requires students to have certain innovative thinking ability.

3. Use quotation and citation: When quoting other people's research results or opinions, be sure to indicate the source to avoid plagiarism. At the same time, be careful not to quote too much, otherwise it may be considered as repeating other people's research.

4. Use duplicate checking tools: There are many online duplicate checking tools that can help students check whether their papers have duplicate content. Before submitting a paper, you can use these tools to check the copy to ensure that your paper is original.

5. Repeated revision and polishing: Writing is a repetitive process. After completing the first draft, students should revise and polish it repeatedly to ensure that their papers are not repeated.

6. Seek help from others: If students have doubts about whether their papers are repeated, they can seek help from their tutors or classmates to help them check their papers.

Generally speaking, avoiding the repetition of papers requires students to have good academic literacy and rigorous academic attitude, as well as to master some writing skills and methods.