illusionil•lu•sion /ɪ'ljuːʒ(ə)n/

n C

1. 幻觉，幻想；错误的观念

• He entertains the illusion that he is always right. 他误以为自己总是对的。

2. 假象；错觉

• Heavy fog had created an optical illusion that made the opposite shore seem closer than it was. 大雾使对岸看起来要比实际上近得多，但那只是光学上的一种错觉。

词组be(或labour) under an illusion 有错觉；存幻想 have no illusions about 对…不抱幻想