电脑为什么会"中毒"？

A computer virus is a small program made by people. 电脑病毒，是人写的一个小程序。 It hides in files and copies itself again. 它藏在文件里，不停地复制自己。 It can slow the computer or steal info. 它会让电脑变慢，或者偷走你的信息。 It spreads when you open a strange file. 你打开陌生文件，它就跟着传播开了。 Antivirus software finds it and removes it. 杀毒软件会找到它，再把它删掉。 Don't click links you do not know. 不认识的链接，不要乱点。 Keep your antivirus on to stay safe. 把杀毒软件开着，电脑才安全。