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As the most important invention in 20th century, computers play
an important role in prople's daily life. It also applied widely
in all aspect of our lives.
As an old saying goes: "Every coin has its two sides".
Along with the development of high technology more and more
problems have been solved. However, there are also more and
more problems brough to our attention. One of which is that
people spend too much time on using computer and lose their
health.
Firstly, as we know, the ray of the monitor of computer is harmful
for our body. Beside, staying too long in fornt of the computer
is not benificial for people's eyes, either...
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