PS is a personal statement, generally 500-700 words, according to the specific requirements of the school. Write down why you went to this school to study this major in a few words; CV is a resume, usually 2-3 pages. This is the most important thing before studying abroad. If you have the ability and time, you can write for a few more months and revise it repeatedly. You can also find an intermediary, which will save a lot of things.

Applying for American graduate students requires TOEFL score of 79/80 or equivalent IELTS score. The highest requirements are TOEFL 100 and IELTS 7.5. The level of language achievement requirements is mainly related to two factors:

First, the school ranking. Generally speaking, the higher the school ranking, the higher the TOEFL score requirements. The top 30 universities are different. For example, USC has no minimum requirements for language, and students with TOEFL scores above 80 and 90 are often admitted. Berkeley really has more than 80 admission cases. Of course, this is only an example and cannot be generalized.

Second, the professional nature, natural science, engineering and other science and engineering requirements are relatively low, while business, media, literature and other professional requirements will be higher, good schools generally require 100+.