Most university courses are free and open. As long as you go to the Academic Affairs Office of China Normal University and find the schedule of this semester, you can go to that classroom at your convenience, because after all, it is a class, you can sit in the back, and the general teacher will not catch you. Think about it, will the teacher be unhappy if you buy his face and listen to his class all the way? Don't worry, listen ~

If you really want to go, you can actually go to the BBS of China Normal University, where there will be school-related documents and schedules. In addition, you can also make a field trip first. There will be a timetable and notice under the teaching building ~