The earth is the bace on which human beings only relies for existence and anycountry ,any area,any city and town is an inseparate part of this big environment .Everyone isits product and builder.

• 地球是人类唯一赖以生存和发展的基地,任何一个国家、地区、城市、乡村的环境都是地球这个大环境不可分割的一部分,每一个人都是环境的产物和塑造者。