illusion:[ i'lu:n, i'lju:- ] n. 幻觉,错觉,错误的信仰(或观念) [ 形容词illusional ] 例句与用法1.He cherished the illusion that she loved him, but he was wrong. 他抱有她爱他的幻觉，但他错了。

2.I was under the illusion that he was honest until he was caught stealing some money. 他偷钱当场被人抓住，在此之前我一直误以为他是个老实人。 3.I thought I saw a ghost but it was just an optical illusion. 我以为我看见鬼了, 其实只是一种幻觉. 4.A mirage is an optical illusion. 海市蜃楼是一种视错觉.