这是空中楼阁，想入非非。
It is building castles in the air.
www.doc88.com原来的理想成了“空中楼阁”。
Previous dream became the "Castles in the air".
blog.163.com你这个想法简直就是空中楼阁,不可能实现的!
Just like castles in the air, this idea is totally impractical.
chengyu.qufenlei.com在你开始建立“空中楼阁”之前，不如先想想你需要付出多少代价。
Before you start building castles in the air, just think how much all this is likely to cost.
www.hjenglish.com她告诉我她已经有了整个职业计划，但是就我看来其实只是空中楼阁而已。
She tells me she's planned out her whole career, but as far as I can see it's all just castles in the air.
www.6yyy7.com
