1 Don't arrive late for class.不能上课迟到.
2 Don' run in the hallways.不能在走廊跑.
3 Don't fight with someone.不能打架.
4 Don't listen to the music in the classroom.不能在教室里听音乐.
5 Don't wear a hat in the classroom.不能在教室里戴帽子.
6 Save water 节约用水.
7 Don't push 不要推搡.
8 no smoking 不准吸烟?
9 Don't litter 不乱扔垃圾
10 Save electricity 节约用电
