保護環境的英語作文650字大綱

peoplehasbeenspoilingthehealthsincetheimmensequantityofchemicalshavebeenproducedandalreadyusedinpursuitofconvenienceandvarioustoxicsubstanceshavebeenproducedunintentionallyandaccumulatedinenvironment.
　　Therefore,willdevelopandimproveanewriskmanagementsystemandadisasterpreventionsystemtopreserveandcreatethecityenvironmentwherepeoplefeeleasyandsoundintheirlife.