你应当为你的愚蠢行为感到羞耻。

You ought to be ashamed of your foolish behavior.

youdao

你应当为自己的愚蠢行为而感到羞耻。

You ought to be ashamed of your foolish behaviour.

《新英汉大辞典》

学校里的人对这种令人难以置信的愚蠢行为感到困惑不解。

The school stared in perplexity at this incredible folly.

youdao

People who have never known of civil society; people who have never known of a world with polis, well, of course,they would do something stupid like that.

希腊人认为不知道文明社会的人,也不会知道城邦的世界,所以才会做出如此愚蠢的行为

耶鲁公开课 - 古希腊历史简介课程节选

There just aren't pricing anomalies that are significant that are going to resolve themselves in a matter of months or weeks and so it's a silly game to play.

显著失常的定价,不会在短短几月或几周内,就在市场中显示出来,因此类似月进月出那些是一种愚蠢的行为

耶鲁公开课 - 金融市场课程节选

If it doesn't make sense, you'll-- If it doesn't make sense or, more to the point, if it's something that you do that's foolish or makes you look manipulative or cheap, you'll distort it in your head so that it does make sense.

如果你的行为不合理，你会…,如果你的行为不合理，或者更确切的地说，如果你的行为很愚蠢,或者让你显得很攻于心计，或很廉价，你就会捏造理由说服自己这是合理的。

耶鲁公开课 - 心理学导论课程节选