分类：教育/科学-外语学习
问题：翻译2世界见证了上海被评选为2010世博会的主办城市,这给一个现 
世界见证了被评选为2010世博会的主办城市,这给一个现代大都市增添了华丽的一笔
回答：the world witnessed Shanghai's being chosen as the host city 
of the World Expo of 2010, which contributes a dazzling 
stroke to the modern metroplis' image.