At that time, you were no longer young, I was no longer ignorant, only the memory was as new as ever and would not change, and the past events came one after another, disappearing time. Looking back, only your eyebrows remain unchanged during this period, and you are amazed by the time when you return to your original appearance. The years are passing by, and when we encounter the past at this moment, it is profound and clear, beautiful and sentimental. Looking back at the youth in the past, there was a group of teenagers who accompanied us on the way forward.