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She played a key role in the dispute.

她在争论中起着举足轻重的作用。

《牛津词典》

It was a different story in Russia, where the St. Petersburg Academy of Science played a key role in creating fireworks displays for the court.

在俄罗斯则是另一番景象；在那里，圣彼得堡科学院在为最高法院举办烟花表演上发挥了关键作用。

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"He has improved information-sharing, increased intelligence support to our troops in Afghanistan and Iraq, upheld civil liberties, and he played a key role in our effort to update and reorient our intelligence community to meet the threats of our time."

VOA: standard.2010.06.05

Food prices played a key role, slowing to 5.3% year over year from 6.2% in October.

FORBES: Russian Inflation Falling

He also played a key role in his country's triumph at the 2009 European Under-17 Championship.

BBC: Fulham sign Shorey, Okaka and Buchtmann

And he explained Redknapp played a key role in luring him to Fratton Park.

BBC: Redknapp delight at Defoe capture