It has been more than 20 years since graduation. Recently, I haven't come back to school for many years, although I often walk by. From sophomore year to graduation, I lived in the headquarters campus here. In the last two years, I lived on the second floor of Siyuan Drinking Water, a believer in Xizhai. In autumn, it has changed a lot, but dormitories, teaching buildings, gymnasiums, playgrounds, canteens, libraries, classroom activity centers and medical offices are all there. I just can't remember where the bathhouse was.