Time will always let us experience some things, which weave our gorgeous youth, intertwined with memories, overflowing with happiness, mixed with tears, bitter and sweet. By chance, I met a friend whom I thought I would never see again. This encounter made me recall the past and think about the present and the future. I hope we can keep up with the pace of time, experience the ups and downs, and feel the ups and downs on this journey of no return.