with the rapid development of the economy,there has been a trend that more and more people own their cars now.however,bicycles as a traditional means of transportation,are still popular among urban residents.it is very easy and convenient to go to school or workplace by bike,consequently,i like it very much.bicycles,unlike cars which produce environmental polutions,are more healthy and never make anywhere dirty,and what is more,it saves energy.i like it because it is convenient and environment-friendly. with the rapid development of the economy,there has been a trend that more and more people own their cars now.however,bicycles as a traditional means of transportation,are still popular among urban residents.it is very easy and convenient to go to school or workplace by bike,consequently,i like it very much.bicycles,unlike cars which produce environmental polutions,are more healthy and never make anywhere dirty,and what is more,it saves energy.i like it because it is convenient and environment-friendly.