禁止在校园扔垃圾 no littering on the campus

园内禁止烟花爆竹 No Fireworks Allowed/ Fireworks Prohibited ; No Fireworks Allowed / Fireworks Prohibited

阻止校园 ROTC

校园禁止吃口香糖 Campus no chewing gum ; Campus ban chewing gum

无止境的乐园 Eden

防止我们的家园 guard our homes