Spurred on by funding policies, half of the European research articles had international co-authors in 2007, this is more than twice the level of two decades ago.

在资助政策的推动下，2007年有一半的欧洲研究论文有国际合作作者，这是20年前水平的两倍多。

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The European Union's level of international co-authorship is about twice that of the United States, Japan, and India.

欧盟的国际合作程度大约是美国、日本和印度的两倍。

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With them “watching,” it will be difficult to stoop to the level of your infuriating co-worker.

当他们“看着”你时，你很难让自己沦落到你那易被激怒的同事的水平。

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Nowhere in ACA does it regulate if state-level CO-OPs are able to use profits to pay its board of directors or if those members must serve on a volunteer basis.

FORBES: CO-OP Health Plans A Fiscal Cliff Victim

Joyce Bridgewater, from Camelford in Cornwall, suffered low-level CO poisoning by breathing the colourless odourless gas in her home over a period of 10 years and now has to use a wheelchair.

BBC: Warning over rise in carbon monoxide fatalities

This level of co-operation is necessary to allow Iraqi officials to provide for the security of the inspectors.

BBC: Iraq arms teams under pressure