In the thank-you part of foreign students' graduation thesis, you can write it according to the following instructions:

1. Thank you at the beginning: at the beginning of thanks, thank you to the tutors, professors and other academic or practical supporters. You can use the following expression:

-I want to thank you sincerely. ...

-Here, I want to express my gratitude. ...

-I sincerely thank you. ...

2. Specify specific help or support: list specific people or institutions, explain the help or support they have given you, and explain their importance to your research. It can include the following aspects:

-Professional guidance and advice from tutors and counselors

-Emotional support and encouragement from classmates, friends and family.

-Resources and facilities provided by laboratories, libraries and practice units.

Financial support from funding institutions or scholarships

3. Express personal growth and academic gains: Talk about your personal growth and academic gains in the research process, and the impact of these experiences on your future. May include the following:

-The contribution of research projects to your academic and professional development.

-Experience in solving problems and overcoming difficulties.

-New insights or contributions to the research field or specialty.

4. Sincere attitude and concise language: When writing thank-you words, you should maintain a sincere attitude, express your thanks in concise and clear language, and avoid using too many words or nonsense.

Please note that the above are just some suggestions, and the specific content and language of thanks can be adjusted according to your situation and personal style. The most important thing is to sincerely thank those people or institutions who have made important contributions to the completion of your graduation thesis.