I just hope that it won't matter in three years, five years, or ten years. One day, we meet and recognize each other. At that moment, I will burst into tears. Another September, in front of the school gate, Cheng Feng smiled and said: "Hello, classmate, my name is Cheng Feng. I know you very well." At this time, Xia Bing didn't know whether she was happy or curious, and said expressionlessly: "Are you Cheng Feng?"