Theearthisourcommonhome.Ontheonehand,itisveryimportantforustoprotecttheenvironment,Ontheotherhand,allofuswanttoliveinabetterplace,Soitisourdutytoprotecttheenvironment.ASajuniorhighschoolstudent,weshoulddosomething.Atfirst,weshouldnverthrowrubbish,wemustkeepthisrule,Second,weshouldbuythingsthatcanbeusedmorethanonce.Third,weshouldrecyclerubbishandmakethemintousefulthings.Finally,weshouldrepairthingsandtrytousetheoldthingaslongaspossible

　　There'remanythingswecando.Let'sworktogethertoprotectourcommonhomeland--TheEarth