I'm so glad that I met you during those days and spent those youthful years together. And our memories are just of that high school where we struggled to catch up. We were stubborn and proud, fighting, laughing and teasing. We worked together and set our ambitions. We were unable to cry out, complained with sorrow and anger, but when we finally saw each other's eyes, we looked at each other, smiled and hugged each other silently. Thank you for letting me enter your world during those days, and thank you for leaving us so many memories in our youth. Li Yi, Song Qingyan, this is our ordinary but not mediocre youth.