Therearestillmanyproblemsofenvironmentalprotectioninrecentyears.Oneofthemostseriousproblemsistheseriouspollutionofair,waterandsoil.thepollutedairdoesgreatharmtopeople’shealth.Thepollutedwatercausesdiseasesanddeath.Whatismore,vegetationhadbeengreatlyreducedwiththerapidgrowthofmoderncities. Toprotecttheenvironment,governmentsofmanycountrieshavedonealot.Legislativestepshavebeenintroduce (共 1353 字) [阅读本文] >>