With the development of economy ,traffic is becoming one of the greatest problems of a modern city. One problem is pollution .The waste gases from the exhaust pipes are great enemies to the air. And there are so many cars and buses in the city that the harm they cause to the environment is considerable. Another problem is crowdedness .City inhabitants are so familiar with traffic jams that they are part of their lives. Time wasted on traffic and people are made impatient by the awful traffic. Worse than that ,traffic accidents are real-life disasters of blood and death .Traffic has become one of the nightmares of people living in cities. To build highways and bridges only works out part of the problem .Cars and buses should be improved to give less waste gases. Government should encourage citizens to take buses so that there is less traffic on road. People should obey traffic rules and try not to make trouble on road. City area should be expanded so that there is more space for wide roads. Maybe low-pollution high-efficiency means of traffic should be invented .Only after we pay enough attention to the problem will it be possible for us to solve it .
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随着经济的发展，交通正成为现代城市最大的问题之一。一个问题是污染，排气管排出的废气是空气的大敌。城市里有太多的汽车和公共汽车，它们对环境造成的危害是相当大的。另一个问题是拥挤。城市居民交通拥堵，他们是他们生活的一部分，那么熟悉。时间浪费在交通上，人们因交通拥挤而变得不耐烦。更糟糕的是，交通事故是现实中的血与死的灾难，交通已经成为城市居民的梦魇之一。修建公路和桥梁只能解决部分问题。汽车和公共汽车应该改进，减少废气排放。政府应该鼓励市民坐公共汽车，这样路上的交通量就少了。人们应该遵守交通规则，尽量不要在路上闹事。扩大城市面积，拓宽道路。也许应该发明低污染、高效率的交通工具，只有在我们足够重视这个问题之后，我们才能解决它。
