A spark ignites the fuel in a car engine.

汽车发动机中的燃料由火花点燃。

《牛津词典》

The standard approach, being pursued in America and France, works like a diesel engine by compressing the fuel until it ignites.

美国和法国使用的标准的方法，如同柴油机工作原理，将燃料一直压缩，直至点燃。

youdao

Any new form of currency inevitably ignites controversy on a number of fronts.

任何新的货币形式不可避免地在诸多方面会引发争议。

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My contention is rather simple: Real pyrotechnics happen in Silicon Valley when an imaginative entrepreneur, often not a super-geek, ignites an idea and sets a truly unique brand agenda.

FORBES: Brand-Building in Silicon Valley

When the silence of an empty room ignites a visceral impending doom reaction, challenge why you shudder out of terror.

FORBES: Do You Talk Too Much? 6 Telltale Signs You're a Blabbermouth

If the flight is only partly successful, it still promises to be the "spark that ignites a thriving industry, " former astronaut Michael Lopez-Alegria, president of a trade group pushing such projects, told reporters said Thursday.

WSJ: SpaceX's Pioneering Flight Plans