should college campus be opened to tourists?

大学校园应该对游客开放吗?
再问： give me your opinions and take some examples.
再答： should the university campus be open to tourists When my eyes caught this topic,my mind was lost in thought.In recent years,university campus has become gradually open to tourists,causing many troubles.As far as I am concernd,tourists should be forbidden for entering campus which is students' paradise. First,campus creates fine environment for the students.If a mass of tourists are allowed to look around,it can be very noisy,thus the students can't dedicate to their study.Second,too many tourists may result in much trash in the campus,therefore it can ruin the surroundings. Furthermore,lots of gun-shot cases have taken place in the campus lately,so the management should be improved lest lawbreaker reach out their hands to the campus. In a word,four years' campus life is very precious to the students.Let us make common efforts to provide them with a better future.