Let us keep the water clean - don't change the environment of the source of water,and can not cut down trees and can not casully break the ground.
英语翻译保持水体的清洁,不能改变水源地的环境,不能砍伐树木,不能随便动土.
Let us keep the water clean - don't change the environment of the source of water,and can not cut down trees and can not casully break the ground.