[单选题]Withmoreandmorecarsontheroad,thetrafficjamwillhappen.Howdoweseeitandhowcanwesolvetheproblem?Weknowthatthetrafficjamhappensinmanyplaces,especiallyinbigcities.Whatarereasonsfortheproblem?Ontheonehand,somepeoplethinkthattheyshouldhaveacarwhentheyhaveenoughmoney,andthenit'seasytogooutandtheycanfeelcomfortable.Ontheotherhand,agrowingnumberofpeoplehopetousetheircarstoshowoff.What’smore,yearsofresearchhasshownthatoneofotherreasonsforthetrafficjamisthedrivinghabit.Forexample,manyyoungpeopleenjoydrivingveryfast,sotheycanfeelexcited.Atlast,mostofthemhardlycareaboutthespeedrules.Manygovernmentsareworkingathowtomakethetrafficbetter.Inmyopinion,firstly,thegovernmentsshouldeducatethosepeoplewhohavecarsorplantobuycars.Thegovernmentsmustmakethemknowthatthetrafficjamisveryserious,andsetupamuchmoreperfecttrafficsystemtosolvethetrafficpressure.36.Whatdoestheunderlinedword"jam"meaninChinese?