A single spark can start a prairie fire.

星星之火，可以燎原。

《新英汉大辞典》

The single spark that started the prairie fire suggests the answer.

引发燎原之火的火花暗示了答案。

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There was barely a single Cardiff fan who didn’t leave the stadium that day expecting Bellamy to fire their side into the Premiership.

那一天，没有一个卡迪夫城的球迷不是怀着贝拉米将自己心爱的球队带入超级联赛的期望离开球场。

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Hampshire Fire and Rescue said the single-storey building in Milton Road was "rapidly engulfed by fire".

BBC: Waterlooville Co-op store destroyed by freezer fire

SEATTLE-August 30, 2012-(NASDAQ: AMZN)- Less than one year ago, Amazon introduced Kindle Fire -combining 15 years of innovation into a single, fully-integrated, end-to-end service for customers.

ENGADGET: Amazon's Kindle Fire has sold out just in time for the company's next big event

We are expressly not speaking here of automatic military weapons which rapid-fire lots of bullets with a single trigger pull.

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