That sentence "I think this is the last call, I want to remember your voice" still makes me moved and saddened to tears. Sometimes I really want to see how he is doing. Maybe I have gradually forgotten his appearance. Maybe this is the fate of people. I have never seen him since then. I can meet his friends on the street, but I have never seen him again. I really don't know if it is fate or that he has escaped. . . To this day, I still think of the boy named "Chao Hai".