【急】英语作文稿!帮我检查下有没有语法错误,并纠正,
Harbin'strafficproblemsareserious.
Firstofall,therearetrafficjams.withthedevelopmentofeconomy,mostfamiliescanaffordtobuycars.Butwhenyouareenjoyingthefreedomofselfdriving,theroadismoreandmorecrowded.Suddenly,youwouldn'tbeenjoyableanymorebecauseyoufoundyourselfhavebeenstuckinatrafficjam.Second,theroadisnotflat.Badroadsdoharmstoyourcarandyoucouldn'tcometoasuddenstopinbadweather.Third,somepeopledisobeytrafficrules.Thiskindofbehaviouristhemostdangerousandusuallycausestrafficaccidents.Ontheotherhand,thesubwayengineeringprojectofHarbinisunderconstruction.Itwillmakeroadslesscongested.Inaword,weshouldmakeeveryefforttosolveourtrafficproblems.Asastudent,whatwecandoistofollowtrafficrules.Otherwiselikewalkingorridingtoschoolalsohelps.Let'smakeacontributiontoimprovingHarbin'straffic.Inthisway,we'llliveasafer(safe?)life.