数学和值公式简介：Not long after, the head teacher of Class 2 came to the main peak of Class 2. Looking at the miserable students, he immediately became angry and said: What's going on? Why are you all hurt like this?
Not long after, the head teacher of Class 2 came to the main peak of Class 2. Looking at the miserable students, he immediately became angry and said: What's going on? Why are you all hurt like this?
