大学四年的生活即将结束在六月，这对于我来说既悲又喜，因为毕业后的我就要

The four years of university life is coming to an end in June, which is both sad and happy for me, because after graduation, I will face a life away from campus. This paper was finally completed on time under the guidance of Ma Xiaoyun's tutor. In the process of writing, I had many problems that I couldn't cope with, but they were solved by methods such as constantly consulting materials, reading books, references, and consulting instructors. It took me nearly four months to complete this thesis. This period of time gave me a very fulfilling life, and the knowledge gained from it far outweighed the effort.

Four years of college life is coming to an end in June, which is both sad and happy for me, because after graduation I will face life away from campus. This paper was finally completed on time under the careful guidance of Ma Xiaoyun's tutor. In the writing process I have a lot of problems that can not cope with, but through continuous access to information, reading books, references, consulting tutors and other methods to solve. It took me nearly four months to finish this paper, and it made me live a very fulfilling life, gaining far more knowledge than I had to pay.

Four years of college life is coming to an end in June, which is both sad and happy for me, because I will face the life far away from campus after graduation. This thesis was finished on time under the guidance of Ma Xiaoyun. In the process of writing, I have many problems that I can't cope with, but they can be solved by constantly consulting materials, reading books, references, consulting tutors and other methods. It took me nearly four months to finish this paper, which made me live a very full life, and the knowledge gained from it was much more than what I paid.<br>