As is known to all, volunteers played an active role in Beijing Olympic Games.

众所周知，志愿者在北京奥运会中扮演了积极的角色。

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Appropriate amount of rim chlorite also played an active role in the protection of reservoirs.

适量的环边绿泥石也对储层起到了一定的保护作用。

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The establishment of welfare system in western countries has played an active role in enhancing social progress.

西方国家福利制度的创设，对人类社会的进步起到了积极的作用。

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It was not until 1995 that former French President Jacques Chirac became the first French leader to officially admit the state had played an active role in the Holocaust.

VOA: standard.2010.04.10

In the 1980s, Gerdau played an active role in the privatization of state-owned Brazilian steel companies.

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Caf said he played an active role in an act that had brought African football into disrepute.

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For more than a decade, the Mexican government has played an active role advocating for millions of migrants abroad.

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