That's just plain stupid!
那简直愚蠢至极！
金山词霸
He scolded himself for being so stupid.
他责备自己太愚蠢。
金山词霸
I'll never commit such stupid mistakes again.
我绝不会再犯这种愚蠢的错误了。
金山词霸
I did something stupid...
我做了一件愚蠢的事。
金山词霸
This stupid piece can't be considered art—it's utterly lifeless and lacks any artistic merit.
这件愚蠢的作品称不上艺术——它完全死气沉沉，毫无艺术价值。
金山词霸
Genuine friendship is infinitely more precious to me than some stupid trinket.
真挚的友情对我来说远比一件愚蠢的小饰物珍贵得多。
金山词霸
She made a stupid mistake by ignoring the advice.
她犯了个愚蠢的错误，就是不听劝告。
金山词霸
He was stupid enough to trust a stranger.
他可真够蠢的，竟然相信一个陌生人。
金山词霸
It was stupid of him to ignore the warning.
他忽视了警告，真是愚蠢。
金山词霸
He'll succeed─he isn't stupid.
他会成功的——他不笨。
金山词霸
Forgetting my keys made me feel stupid.
我忘了带钥匙，感觉自己很愚蠢。
金山词霸
I thought that someone might do something stupid.
2017年6月四级真题（第二套）听力 Section A
He made a stupid decision at the cabinet meeting.
出自-2011年12月听力原文
But in the letter, I just told him frankly I could no longer live with his poor management and stupid decisions.
出自-2010年12月听力原文
And besides, he or she has seen many students stupider than you, so nothing you're gong to ask will set the record for stupidity.
2015年高考英语浙江卷 阅读理解 主旨概括 原文
Growing up, I had people telling me I was too slow, though, with an IQ of 150 at 17, I'm anything but stupid.
2016年高考英语北京卷 阅读理解 阅读A 原文
Others say we can just "switch them off" as if super intelligent machines are too stupid to think of that possibility.
2017年高考英语北京卷 阅读理解 阅读D 原文
Those born stupid could not change their life.
2015年高考英语福建卷 阅读理解 阅读B 选项
You can call their views stupid, or joke about how ignorant they are.
2020年考研真题（英语一）翻译 Section Ⅲ
"The economy, stupid!"
"he had a dazed expression on his face"
"lay semiconscious, stunned (or stupefied) by the blow"
"was stupid from fatigue"
"a dull job with lazy and unintelligent co-workers"