天空之城（电影名）

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 the air───空中楼阁；白日梦

castle in the airs───空中楼阁；白日梦

late in the day───在那天稍晚些时候；为时太晚，失时机

pie in the sky───不能保证实现的诺言；渺茫的希望

whistle in the dark───乱猜；假装知道

whistle in the wind───在风中吹口哨

a flash in the pan───昙花一现

a place in the sun───显要的地位

you building castles in the sky?───你是否曾幻想着在建造空中城堡？

Neurotics build castles in the sky.───神经病在空中修建城堡。

Your plan to spend the vacation in Europe is castles in the sky due to our tight budget.───你去欧洲度假的计划太不现实，因为我们手头的钱很紧。

Are you building castles in the sky?───你是否曾幻想着在建造空中城堡？

All of my dreams seemed like castles in the sky───我所有的梦想就像空中楼阁