It’s a gag from a behind-the-scenes episode during the filming of Chen Qing Ling. According to the relevant information of Xiao Zhan and Wang Yibo, it was found that this was the interaction between Xiao Zhan and Wang Yibo, Wang Zhuocheng, Ji Li and others after filming. Someone asked a question, and Xiao Zhan and Wang Yibo answered abcd. The answer was only The two of them understood, while the others were in a state of confusion.