n.空中楼阁（等于aircastle）；不可能实现的计划，幻想；白日梦

castle in the air───空中楼阁；白日梦

castle in the airs───空中楼阁；白日梦

castle in Spain───海市蜃楼

catch sb in the act───当场抓住某人

whistle in the dark───乱猜；假装知道

whistle in the wind───在风中吹口哨

keep balls in the air───把球放在空中

clear the air───消除误会；使空气清新；澄清事实

late in the day───在那天稍晚些时候；为时太晚，失时机

Don't build castles in the air when you design this important project.───当你设计这项重要的计画时,不可成为空中楼阁,不切实际.

So it was good - bye to Chou Chung - wei's castles in the air.───周仲伟一肚子的如意算盘统统倒翻了.

It's building castles in the air.───这是空中楼阁,想入非非.

Don't build castles in the air.───不要想些空中楼阁了.

Castles in the air - they are so easy to take refuge in. And easy to build, too.───空中楼阁 —— 很容易进去避难的地方, 而且也容易造出来.

He is the builder of castles in the air.───他是一位不切实际的人.

Be realistic! It is too risky o build castles in the air.───务实一点吧! 建造空中楼阁是危险的.

Their calculations have all been proved to be castles in the air.───他们的算计证明不过全都是空中楼阁。

These were no castles in the air.───而他这理想未必完全是架空的.

I am not talking about the castles in the air, the donkey's carrot.───我并不是说的空中楼阁- - -叫大家望梅止渴。

As he walked along, his brain was busy planning hundreds of wonderful things, building hundreds of castles in the air.───当他走着的时候，他的脑子里正忙着计划许多奇妙的事情，建起一座座空中楼阁。

Theoreticians are busy building and refining the castles in the air of the model world.───理论家们忙于建立和改善模型世界中的空中楼阁.

Castles in the air cost a vast deal to keep up.───空中楼阁,要有一大笔费用来维持.

His schemes are just castles in the air.───他的种种方案均属空想.

Just like castles in the air, this idea is totally impractical.───你这个想法简直就是空中楼阁,不可能实现的!

I have been building castles in the air with you.───我一直和你一起做白日梦.

That boy builds phantasies and castles in the air.───那个男孩好空想.

I see he's still building castles in the air.───我看他又在做白日梦了.

I have been building castles in the air with you.