folly|follies

公园里那座精致的中国亭子纯粹是为了装饰而建造的。

The delicate Chinese pavilion in the park is purely a ___folly built for decoration.

他认为半夜去爬山是他最大的愚蠢行为之一。

He thought hiking at midnight was one of his biggest ___follies.

他年轻时的挥霍无度最终导致了家庭的财务困境。

His youthful ___follies eventually led to financial troubles for the family.