This morning, a child in class 13, grade one knocked Xiao Yifei out of our class. I asked him to apologize, but he said he had never heard of it. Then I asked Xiao Yifei: where did he hurt you? Xiao Yifei said her face was swollen.
I rubbed Xiao Yifei and put some cold water on her face. It's better in less than one minute. Because I also had this experience when I was a child. My face was bumped and swollen. My teacher just put some cold water on it. In the future, don't learn from Xiao Yifei's self inflicted children who was knocked down by class 13, grade 1.