Mr. Sai is a British teacher who teaches environmental design at my university. 　　By the time they reach university, most students have lost the attachment they had when they were young to their teachers, replaced by respect and a strange sense of distance. The teacher is no longer a teacher, but a professor, a teacher. of course there are exceptions. As long as you meet a cheerful student or an enthusiastic teacher, this sense of distance will be broken. However, Mr. Sai is not very active, and I am not a cheerful student. To me, Mr. Sai, has a feeling that the friendship between gentlemen is as light as water.…