fantasy

I used to have fantasies about living in Paris with an artist.

我过去常幻想着在巴黎与一位艺术家同住。

Young children sometimes can’t distinguish between fantasy and reality.

小孩子有时不能区分幻想与现实。

He lived in a fantasy world of his own, even as a small boy.

甚至还是个小孩子的时候，他就生活在一个幻想世界里。