First of all, you should always preview your textbooks. It is very pleasant to review your textbook. There are not many specialized classes in a week, not as frequent as Chinese and math classes in high schools. But in college, one class lasts for two hours, with only 10 minutes in the middle, and two classes are one morning. Specialized courses generally don't last for a whole morning or a whole day, but each class has a lot of content, and the textbooks in universities are relatively thick, and a class may take dozens of pages. If you don't pay attention to the class or play with your mobile phone, it may lead to the poor classroom efficiency of the whole class, and you may not grasp the knowledge content of the teacher. Moreover, teachers are almost divorced from textbooks in class, so people may not find a specific position when the teacher is talking, which will make people more and more reluctant to attend classes. So in order to improve the efficiency of class, we must preview before class and review more after class. Only in this way can we digest all the knowledge the teacher has said.
Second, go to the library to read more books and do homework. Although there are not many classes in the university, there are still quite a lot of homework. Almost every class will let everyone check some documents and then write a paper of thousands of words. This is also a common occurrence, so don't perfunctory your homework. Try to go to some quiet places to study. Many people like to stay in the dormitory when there is no class. The dormitory is a warm place, and now everyone is having a hard time.