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。
2
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。
3
With them “watching,” it will be difficult to stoop to the level of your infuriating co-worker.