Social media has begun to play a key role in how companies shape their corporate social responsibility (CSR) policies and present themselves as good corporate citizens.

大众传播媒介在企业如何制定企业社会责任政策及展现自己好的公司形象方面发挥了重要的作用。

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What's certain is that HTML5 will likely play a pivotal role as companies position themselves vis-a-vis each others' devices and marketplaces.

可以肯定的是，随着各家公司直接比较各自的设备和市场，从而实现自我定位，HTML5有望发挥关键性的作用。

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Although they don't actually provide any services themselves, service consumers play a useful role as without them the system is cut off from the outside world.

尽管它们本身并不实际提供服务，但服务使用者扮演着重要的角色，如果没有它们，系统就断绝了与外部世界的联系。

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In most cases, parents themselves might play a role on a new school's governing body but would not be involved in teaching or the running of a school.

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We expect more acquisitions in the future as major storage players position themselves to play a larger role in this evolving and profitable market.

FORBES: Lights, Cameras and Digital Storage

Naturally I'd have to sing the praises of our team of journalists, but the reality is that it is the viewers themselves who also play a huge role in what appears on screen.

BBC: Where BBC Inside Out gets its stories from