Weir broke his leg in a freak accident playing golf.

韦尔打高尔夫球时因一次不寻常的事故而摔断了腿。

《柯林斯英汉双解大词典》

The pile up of cars on the motorway yesterday was a freak accident caused by a combination of icy roads and fog。

昨天高速路上发生的连环撞车是一场罕见的意外，因为当时道路结冰了，而且又有大雾。

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Veronica finds it strange that the only room that flooded was that evidence room. The clerk responds that it was some kind of freak accident.

Veronica认为只有证物房被淹也太奇怪了，那职员回答说，这真是不寻常的事故。

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All of us, after all, are one freak accident away from a horrible death.

WSJ: Best of the Web Today: We're All Fox News Now

Ken Holden, who owns the centre, described the man's death as a "freak accident".

BBC: Middleton man killed by 'agitated' horse in Lancashire

The defendants said the risk of serious injury was very slight and it was a freak accident.

BBC: Ex-RAF man Robert Uren wins compensation battle