pipe dream
[口]白日梦，空想
同义词
参考例子
1.This maybe is just our pipe dream.
这也许不过是我们的痴心妄想。
2.My friend Johnny has this pipe dream about becoming a famous movie star.
我的朋友约翰尼一直在白日做梦想成为一个有名的电影明星。
3.You can study acting as long as you like, but starring in a Hollywood movie is just a pipe dream.
只要你喜欢就能去学表演，但是，主演一部好莱坞电影只是白日梦。
英文解释
n.
1.a fantastic but vain hope (from fantasies induced by the opium pipe)
网络释义
Pipe Dream
管道之梦; 白日梦; 幻想; 梦幻之笛;
Pipe Dream II
管道之梦之二; 管道之梦II;
be a pipe dream
白日梦,幻想;
Pipe dream of next life
来世迷梦; 未来之梦;
castle in the air daydream fantasy pipe dream
白日梦;