First, communicate with the tutor face to face and ask the tutor the specific reasons and shortcomings for grading the paper. Listen to the tutor's suggestions and opinions, carefully analyze your own papers, and find out the existing problems and room for improvement. Secondly, according to the guidance of the tutor, the thesis is revised and improved, emphasizing the logic, structure and accuracy of the language expression of the thesis. At the same time, you can ask other teachers or classmates to review the paper and put forward their opinions in order to get more feedback and improve the direction. Finally, submit the revised paper to the tutor for re-evaluation, indicating your positive response to the tutor's opinions and your efforts for improvement.