I'm sure I can get in. There are people standing guard at the school gate, but they usually don't ask people who are neatly dressed. It is impossible for so many people in a school to show their certificates, as someone upstairs said, unless there are special circumstances (such as SARS in previous years), hehehe, then you are not allowed to enter without a license. . . Besides, even if someone asks, you can say that the graduates of Dongda University want to go back to their alma mater, and I believe they will not refuse to let you in. It has been 40 years. . . School has changed a lot! I'm sure you'll have a lot of regrets when you come.