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With the development of computers,more and more people use computers nowadays. We seem that we cannot live well without computers. For example,a large number of people use computers to work out problems and they also use computers at home to search some information. Every coin has two sides. Computers have some disadvantages,too. Sitting in front of a computer for a long time,we always feel not very good. Our eyes are a little painful and dry. And our body feel bad. So at the same time of using computers,we should take good use of them,let them help us,not hurt our body!
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