错觉用英语怎么说?

an illusion; a mistaken impression; a trick of senses; a delusion; a hallucination

grabbing an illusion英文翻译如下抓住幻觉重点词汇释义grabbing抓住; 攫取; 抓住，夺得;例句Quick, grab a hold of that rope.快，抓住那条绳子。He offered a grab bag of reasons for his decision.他为自己所作的决定提出了各种理由。

misconception或illusion，前者指真实事物所造成的逻辑错觉，后者指人的大脑思维错觉。