成语故事：空中楼阁 A Castle In The Air
空中楼阁
kōng zhōng lóu gé
A Castle In The Air
空 means the sky or the air. 中 is in the middle of. 楼 is a building, 阁 means a cabinet or chamber. So 空中楼阁 means the house built in the sky or a castle in the air. It's a way of criticizing someone's daydreams or impractical plans.
Literal meaning:a mansion in the air
Explanation: realm of fancy; illusion
E.g
他的提议只是空中楼阁。
Tā de tí yì zhǐ shì kōng zhōng lóu gé。
His proposal was nothing but a house of cards.
