I didn't sign up for class, and I really wanted to attend Da Rui's lecture, but last time I read the comments, someone was stopped outside the door, probably because of poor communication with the school. I hope to solve the problem as soon as possible. And I didn't go to the scene in Beijing last time. I wanted to watch the playback and found that there was no complete video. Details determine success or failure. The details must be done well, and the original good mood is ruined. I feel that the authorities are not very powerful. Is it so difficult to find the replay link? Later, it was found that Tik Tok also had one, but it was just a fragment in Tik Tok. Woo hoo, it hurts, little rarity.