【正确答案】
One possible version:
In university campus, especially in some famous ones, such as Peking University and Tsinghua University, tourists are always seen looking around everywhere. Although most of them visit with hope and respect, I think university campus should not be open to tourists.
First, tourists' visit will disturb the normal teaching. They always get into teaching buildings, libraries and so on. They will make noise and throw rubbish everywhere. Second, some tourists trample grass to take photos, and sculpture on trees to leave words. These will affect the environment of the campus badly.
The university is a holy place for study, not for tourism. So it should not be open.