虽然这两个单词的意义很接近，但翻成英语还是有区别的。幻觉：illusion错觉：delusion The difference here is that illusion is an imagined vision but delusion means you are fooling yourself about what you see/or what is happening.两者的区别是，illusion 是一种想象的场景（幻觉），而 delusion 意味着你被所看到的/或所发生的事欺骗了。
如颖随心
