What he did in the conference was an act of sheer folly.

他在会议中的所作所为是彻头彻尾的愚蠢行为。

The castle on this cliff is a folly with no practical use.

这个悬崖上的城堡是个装饰性建筑，无实际用途。

She was famous for her excellent performance in Follies.

她因在时事讽刺剧中的出色表演而出名。

It would be folly for the country to become involved in the war.

这个国家要卷入战争是愚蠢之举

A common financial folly among young people is to want too much, too soon.

年轻人在财务上一个常见的愚蠢行为是想要一夜暴富。

It is the nature of folly to see the faults of others and forget one's own.

愚蠢的本质是只看到别人的错误而忘记自己的错误。

Where ignorance is bliss, 'tis folly to be wise.

当无知为福时，聪明就是愚蠢。

It would be folly to turn the offer down.

拒绝这个建议是愚蠢之举。

It seems like an act of monumental folly.

这似乎是一种非常愚蠢的行为。

Poverty and human folly magnify natural disasters.

贫穷和人类的愚蠢加剧自然灾难。

Giving up a secure job seems to be the height of folly.

放弃一份安定的工作似乎愚蠢至极。

It's sheer folly to build nuclear power stations in a country that has dozens of earthquakes every year.

在一个每年发生几十起地震的国家建立核电站实在愚蠢。