Withtheimprovementofourlivingstandard,moreandmorepeoplecanaffordacar.Asaresult,ourroadsaremoreoftenthannotcrammedwithcars.However,withmoreandmorewastegasbeingdischargedbythecars,theproblemofairpollutionbecomesevenmoreserious.Sonowadaysweadvocatetoleadalow-carbonlife. Mysuggestionisweshouldridebikesmoreofteninsteadofdrivingcars.Byridingabike,wecannotonlyexerciseourbodybutalsoprotectoure (共 631 字) [阅读本文] >>