It was an unfortunate accident.

那是一次不幸的事故。

《牛津词典》

It was an unfortunate choice of words.

那是一种不恰当的措辞。

《牛津词典》

Living in London, he felt, was an unfortunate necessity.

他觉得在伦敦生活是迫于无奈。

《牛津词典》

The statement describes the Rolling Stone article as "unfortunate", but adds - "it is just an article."

VOA: standard.2010.06.22

This is an unfortunate thing you see throughout education frankly, certainly at the secondary and primary school level where you just insert technology into the classroom and expect to solve problems, that is not in life always the case.

遗憾的是,中小学教育中,就是讲知识然后运用所学的知识解决问题,但是实际生活中不总是这样。

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I think it's an unfortunate practice.

我认为出现这种现象十分不幸。

不平等的赞助入学 - SpeakingMax英语口语达人

Fellow former teenage heartthrob Selena Gomez put on Vegas-y frocks and an unfortunate Cleopatra-inspired hairdo.

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And it's an unfortunate result of the arbitrary, across-the-board nature of the sequester cuts.

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Residential burglary is an unfortunate fact of life, and everyone is vulnerable, including you.

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