Li Bin is my classmate and my desk mate as well as my neighbor. Once during a math test, he asked me for an answer, but I did not tell him. He was very angry to me,while I explained to him that I was not afraid that he got a higher score than me, but hoped he could get scores by his own efforts. Besides, I told him that I was trying to help him rather than doing harm to him. After listening to my words, Li Bin got to understand my approach, and we became good friends again.