Currently there are many cons about living in cities such as environmental pollution, traffic congestion, and crime. First, environmental pollution is an important issue. The air is polluted by smoke from motorcycles, factories, cars do serious pollution caused health problems Monday, traffic jams in rush hour in major cities. Traffic jams and accidents in traffic can be a nightmare in the big city. Finally, the social ills such as drugs or robbery happened more than affect the life of everyone. In summary, still many difficulties of life in a big city.
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