People enjoy the convenience and great efficiency brought by the Internet, at the same time, their computers are continually suffered from many kinds of computer virus and hackers' attack.
人们在充分享受着互联网所带来的方便和高效的同时，也不断受到各种计算机病毒感染和黑客恶意攻击的侵扰。
Some viruses are very deadly, they themselves attack on computer in addition they infect system files on OS and make them also act as virus.
有些病毒是非常致命的，他们自己的计算机攻击除了他们感染上的OS系统文件，使他们也充当病毒。
But at the same time, the attack of computer virus is increasing every day on computer and network, and the destructive is becoming more serious.
但与此同时，计算机病毒对计算机及网络的攻击一劳永逸，并且破坏性日趋重大。
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