Nowadays more and more people have abilities afford to buy a car.Car is very convenient.We can be ought to anywhere we want to go by car.However,everything has two sides.In some big cities ,the heavy traffic jam is cased by car.On the road,you cannot move in several minutes.You may get mad in the traffic jam.Whats worse,the traffic jam can case traffic accidents.So we should do something to reduce the traffic jam.

When we go to school or go to work,we can take the bus instead of taking the car.Not only the traffic jam can be reduced ,but also you can save your money and protect our invironment.A bicycle is also a good choice.