The New York Times called it quote "a stupid idea" unquote.

纽约时报把它称为，引文起“一个愚蠢的想法”引文止。

《柯林斯英汉双解大词典》

I made a stupid mistake.

我犯了个愚蠢的错误。

《柯林斯英汉双解大词典》

It was a pretty stupid thing to do.

做那样的事实在愚蠢。

《牛津词典》

Peace would have given this donkey a chance to escape from ever being found out as being so stupid.

VOA: special.2010.03.27

They can pretty much pack it up and go home, because everyone's going to think they're ridiculous, no one will believe what they say, and it's a stupid idea anyway, is basically the gist of this conversation.

他们就可以打包回家了，因为每个人都会认为他们很荒谬，没有人会相信他们的说法，这是个很愚蠢的想法，这就是他们当时谈话的大概意思。

麻省理工公开课 - 化学原理课程节选

We know, of course, that Adam and Eve are going to eat the stupid fruit; but Milton is developing a style that works to resist our drive to get to the end of the story.

我们知道亚当夏娃会吃掉那愚蠢的果子;,但弥尔顿创造了一种体式,抗拒我们想要读到故事结局的冲动。

耶鲁公开课 - 弥尔顿课程节选

However, there is such a thing as a stupid answer, a bad answer or a dumb answer.

FORBES: Stop Worrying About The Questions -Media Training

Instead, I imagined him calling the policeman a stupid idiot, a spineless coward, a sadist, a bastard, and I imagined the shock of the policemen the chief staring openmouthed, the other cellmates stunned at the audacity of the boy from the university.

NEWYORKER: Cell One

So, in this case, adding just one woman to the board could mean the difference between a really stupid purchase and a decent purchase.

FORBES: Risky Business: Are Men to Blame for Today's Problems?