In a worse case, operating system providers could invade a personal computer through the Internet.
更为糟糕的是，操作系统供应商可以通过互联网入侵个人电脑。
The computer system broke down suddenly while he was searching for information on the Internet.
当他在电脑上查找信息时，电脑系统突然出故障了。
The computer system ___________suddenlywhile he was searching for information on the Internet.
在他上网查找资料的时候计算机系统突然瘫痪。
The computer system ___________suddenlywhile he was searching for information on the Internet.
在他上网查找资料的时候计算机系统突然瘫痪。
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