Secondly, I think it is necessary to go abroad for postgraduate study, unless you are a particularly good school in China, such as Tsinghua and Tongji. The educational concept of general universities and even 2 1 1/985 institutions is still not as good as that of foreign countries, and it is relatively easy for British research institutes and American research institutes to apply for good schools. If they want to study for a doctorate, they need to go abroad all the more.
Finally, it is important to choose foreign institutions and teachers. Institutions can help you solve common problems quickly and avoid detours. In addition, the bigger the organization, the better. It is recommended to visit the north and Shanghai more often.