做那样的事实在愚蠢。

It was a pretty stupid thing to do.

我很生自己的气，竟犯了这样愚蠢的错误。

I was very angry with myself for making such a stupid mistake.

仅从一个事例进行归纳的做法是愚蠢的。

It would be foolish to generalize from a single example.

信任这样的人将是愚蠢至极。

It would be sheer madness to trust a man like that.

别老用许多愚蠢的问题打扰他。

Don't keep worrying him with a lot of silly questions.

我犯了个愚蠢的错误，把那份文件扔掉了。

I made a bit of a boob throwing that file away.

我旁边那位愚蠢地评论起来。

The person next to me piped up with a silly comment.

现在改变方向可谓愚蠢至极。

It would be the height of folly to change course now.

做那样的事太愚蠢了。

That was a pretty dumb thing to do.

她那些幼稚的愚蠢行为我受够了。

I've had enough of her childish stunts.

珍妮只好自嘲自己的愚蠢。

Jenny had to laugh at her own foolishness.

这似乎是一种非常愚蠢的行为。

It seems like an act of monumental folly.