Thousands of people stream into cities， especially big cities .Big cities have special attractions for many people. First ， in big cities， people can easily get a job to make a living . Then， there are many facilities which make people feel very convenient in life. Third ， people have more into big cities by all means . I like living in a big city because it can provide me with move convenient living conditions and a good job . Besides ， living in a big city， I can get the latest information coming from every field which will make you wiser . However ， Big cities are facing problems and the biggest one is traffic . There are too many people and cars . The traffic is heavy ，especially during the rush hours . Every street is crowded . Cars are running fast， they may cause traffic accidents easily . What is move ， as a daily commuter ， Everyone wastes a lot of time on commuting . Time is valuable . So traffic is a big problem which has irritated everyone much.

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