There are two ways for universities to go abroad at public expense and at their own expense.

Public expense means that you study very well, and the state pays you to study. Generally, this amount is relatively small and difficult.

At one's own expense, study at one's own expense and take the affirmative exams of foreign schools such as TOEFL, IELTS and GRE.

There is also through the intermediary, first go abroad to study language classes, and then pass the undergraduate language exam.