每日背誦第一期48
A virus is a computer program that copies itself onto other programs and infects them. Similar to an easily spread disease, a computer virus goes from computer to computer, either adding to or changing the tasks a program is designed to do.
計算機病毒是一種計算機程序，它把自己的程序拷貝到其它程序上，從而傳染病毒。和容易蔓延的疾病一樣，電腦病毒由一個計算機傳到另一個計算機，增加或改變原程序所執(zhí)行的任務。
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