A volunteer (1st R), who is an Arabic translator, introduces to other volunteers how to serve people in the religious sites at the Niujie Mosque in Beijing, capital of China, July 23, 2008. As the 2008 Beijing Olympic Games approaches, more than 400,000 volunteers have been working at 550 street stalls around Beijing since July, providing information, emergency aid and translation services for people from around the world.(Xinhua Photo)