关于交通方式

　　谈谈你对骑自行车与开小汽车两种交通方式的看法及你通常采用的方式。

　　There are many kinds of vehicles, such as riding bicycles, driving cars. Which kind of vehicles do you like? I like riding bicycles.I think riding bicycles is better than driving cars because it saves money and energy. It can avoid air pollution. It has low cost. The bicycle needs less space.Riding bicycles can make us feel tired, but it let us keep fit.Driving cars saves more time than riding bicycles.But it has high cost. It can cause air pollution. It needs more place than the bicycle. What do you think of ?