Most colleges and universities will require at least two letters of recommendation from experts with associate professors or above in their application materials.

Be sure to show your strengths in the letter of recommendation. If your grades are good, write down your grades. If you have participated in many projects, write that you have rich project experience, and then talk about your work and main contributions in the project. If English is good, you can write English reading and writing and read English articles after taking IELTS and TOEFL. In short, let the graduate school see that your ability meets their requirements.