I often fell down for no reason.

我经常无缘无故地摔倒。

youdao

His wife was troubled about being shouted at for no reason.

他的妻子因无缘无故被人大骂而烦恼。

youdao

For no reason at all, wearing his bathrobe makes me feel better.

毫无理由地，穿他的浴袍让我感觉好多了。

youdao

He seemed to kill for no reason, and with no emotion, as if taking someone's life meant nothing.

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swinging a baseball bat at me on the subway train for no reason, except that he's crazy.

他在地铁上无端地朝我挥动棒球拍，没有理由，除非他疯了。

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So I wrote my dissertation on Byron as a result of that-- nothing complicated, no deep reason for doing these things.

所以我论文写的就是关于拜伦的-,没有太多的考虑，就是因为我喜欢。

耶鲁公开课 - 文学理论导论课程节选

As an illustration consider someone punching you in the nose on the bus for no reason.

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In any case, my mother did, at some point, open the door, for no reason.

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Montezemolo and Della Valle talk all the time, often for no reason at all.

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