n.空中楼阁，白日梦，想入非非的计划

空中楼阁；白日梦

castle in the airs───空中楼阁；白日梦

castles in the air───n.空中楼阁（等于aircastle）；不可能实现的计划，幻想；白日梦

castle in Spain───海市蜃楼

whistle in the dark───乱猜；假装知道

whistle in the wind───风笛

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

up in the air───悬而未决

a stab in the dark───暗中刺伤

Humanity spirit will a castle in the air if man's desire cannot be satisfied.───如果人的欲望都难以得到满足的话,那么人文精神也就无从谈起.

Your plan is merely a castle in the air.───你的计划不过是空中楼阁而已。

My advise is, stop building castle in the air.───我的看法是, 停止建设空中楼阁.

It is out of the question for anyone to build a castle in the air.───任何人想建立空中楼阁都是不可能的.

Nobody is safer than he who lives in a castle in the air.───生活在空气城堡中的人是最安全的.

He returned to his lodging with his head full of castle in the air.───他脑袋里装载着空中楼阁回到了寄宿处.

Spend not all your time in building castle in the air , or house on the sand.───不可想入非非.

If you don't study hard from now on, your ambition to enter Tsinghua University will be just a castle in the air.───如果你不从现在开始就努力学习，你考进清华大学的抱负就是异想天开。

What he is talking about is just a castle in the air.───他所谈论的一切,只不过是空中楼阁.

Agricultural production is assisted is more a castle in the air.───农业生产辅助更是“空中楼阁”.

This practice opens the door to castle - in - the - air specifications.───这种做法导致规范成为空中城堡.

His castle in the air crumbled.───他的空中楼阁成了泡影.

Instead of working hard at her lessons, Mary spends her time building a castle in the air.