Go in through the back door (Hu Quan Street), in front of which is the teaching building 1, which is the building of the mail room (the sign of the School of Chemical and Pharmaceutical Engineering is hung upstairs); Go in through the back door (Hu Quan Street) and turn right to the end, which is Building 2. Building 3 is the tallest building at the gate (Xiongchu Avenue) (I can't remember more than ten floors); The teaching building 1 and 2 are older. There is also an incubator building at the back door; There is also Teaching Building No.4 (opposite to the library, with only one floor, which is also relatively old. I can't remember which nights movies are shown there every week.