Bicycles Battle with Cars for Streets
Riding bicycles can free riders from several troubles when traffic is heavy. First, riders need not elbow their way up into a crowded bus. Second, they can go wherever they please when numerous vehicles hold up the traffic. Third, bicycling does much good to the health of regular riders (常骑车的人). Finally, riding bicycles is eco friendly(有利生态的，有利环保的).
