"Yo! How early are you! " Ouyang pushes the door and comes in. We get up from the floor. Ouyang drops his bag on the floor and runs to clap hands with us. "Brother Ouyang didn't sleep well yesterday, did he?" I looked at his slightly red eyes and said, Ouyang stretched out and yawned and said, "Hey, don't mention it. I had a cup of coffee after supper yesterday, but I didn't feel sleepy until more than 12 o'clock in the morning. I regret that I died." We laughed at random, and then the other team members came in succession. Just after the assembly, the gate of the gymnasium...