For example, one train mistook a bright star for a white light and something unexpected happened.

例如，一列火车把一颗明亮的星星误认为白光，然后发生了意想不到的事情。

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He was at the point of success when something unexpected happened.

眼看他就要成功了，就在这时发生了意想不到的事。

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However, in this paragraph of common sweet days, something unexpected happened.

可是，就在这段共同甜蜜的日子里，一件意想不到的事情发生了。

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By then something unexpected had happened.

ECONOMIST: George Robertson punches above his weight

But then something unexpected happened: The punchline punched back.

WSJ: Euro 2012: England Beats Sweden 3-2

On Friday November 2nd, something unexpected happened during an armed robbery at the Ciampa Apothecary on Cambridge Street in Boston.

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