n.欺骗;谬见;错觉;妄想;
例句:
He is under a delusion in this matter.
他对这事有误会.
I was under the delusion that he intended to marry me.
我误认为他要娶我。
The disappointment of manhood succeeds to the delusion of youth.
壮年期的失望接替青年期的幻想.