砂上の楼閣
2018.12.09 13:00
[sajou-no-roukaku]
Literal translation:
a lofty building on sand
Meanings:
(1) a house of cards (English idiom)
a weak and fragile structure, plan, or organization
(2) castles in the air (English idiom)
dreams, hopes, or plans that are impossible, unrealistic, or have very little chance of succeeding.