The harm of pc games and how we can avoid more radiation?

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personal computer has become a common part of people's life.and playing pc games on campus always aroused the greatest concern.what impreses us more is the harm of playing pc games on campus. Among the various reasons,weast of time plays an important part.that is to say,many studend has addicted in the pc games and forget what is the primary task of them. And most of us do more things front of the computer ,such as chat,read,watch and so on,but how to avoid computer radiation?We need to have a good health.