Jia Lingchun's evening sketch was written by her mother-in-law. Why do you want to draw diagonal lines?

It is forbidden to draw diagonal lines in the circle in the traffic regulations, which probably means that demolition is forbidden. In fact, I think it may be the subconscious exertion of the actors during the performance, and there is not much meaning. Of course, Jia Ling's original intention may be to tear down the door, but he added a slash when he was excited.