She got angry without rhyme or reason.

她莫名其妙地生起气来。

《新英汉大辞典》

There's not a lot of rhyme or reason behind the next list.

下面这份名单背后其实没有太多的理由支撑。

youdao

We live in a random universe, they say, with no rhyme or reason to it.

我们生活在一个随机的宇宙，他们说，没有押韵或理由给它。

youdao

But the practice doesn't make sense "if there's no rhyme or reason to it, " he added.

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And there's no real rhyme or reason to how a surrounding area affects crime on campus.

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"There's no rhyme or reason, " Sutton said, saying the lieutenant was hard-working and seemed well-adjusted.

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