Darius, who doesn't like school, who is sometimes stupid and mostly a fool, said something wise today, though most days he says nothing.

大流士，不喜欢上学的他，有时很傻，几乎是个笨人，今天却说了一句聪明的话，虽然大多数日子他什么都不说。

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Sometimes something that makes no sense, is completely off topic, or just utterly stupid gets the best laughs.

有时那些不可理喻、与主题完全无关或极其愚蠢的东西却博得最多的笑声。

《柯林斯英汉双解大词典》

Sometimes, people went to sleep in them for a hundred years, which she had thought must be rather stupid.

有时候，人们会在里面昏睡百年，她觉得真是不可理喻。

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Teenagers sometimes do stupid things, said Ismagulov, stressing that his son didn't know he was doing anything wrong.

CNN: Bomb suspect's friend out on bail, released to mom

Partisanship is unhelpful and counterproductive and sometimes downright stupid.

FORBES: Shrinking the Liberal Tent

And while Twitter sometimes reveals the stupid side of celebrity culture, it's also brought fans closer to their favorite actors, musicians, writers and athletes than was ever possible before.

CNN: Seven years, seven lives changed by Twitter