比较坐公共汽车与骑自行车的优缺点.by Bus or by Bike

By Bus Or By Bick Nowadays,more and more people like to go by bus。However,the problem appeares that the traffic jam happens frequently because too many bus are moving in the road。Altough going by bus is convienient and fast,it causes the air pollution。We should better protect the environment and live healthily。So why not take the bick for a change 。Although it goes slowly and you may get tired,it doesn't take any resources like petrol。It can help us to protect the environment as well as keep us healthy and fit。Also, It won't cost much so that everyone can afford it。 In one word ,it's better for us to go by bick and live a better life。