英语释义
1. someone or something intended to defeat or subvert from within usually by deceptive means
2. a seemingly useful computer program that contains concealed instructions which when activated perform an illicit or malicious action (such as destroying data files) also the concealed instructions of such a program — compare virus sense 3
3. someone or something that is used to hide what is true or real in order to trick or harm an enemy
4. a seemingly useful computer program that is actually designed to harm your computer (such as by destroying data files) if you use it