delusion|delusions

她还抱有他会回心转意的妄想。

She still clings to the ___delusion that he will change his mind.

她坚信邻居在偷听她的电话，尽管没有任何证据支持这种妄想。

She held the ___delusions that her neighbors were eavesdropping on her calls, despite no evidence.

远处的海市蜃楼不过是光线造成的幻象。

The distant mirage was just a ___delusion caused by light refraction.