A volunteer guides the road for visitors at a volunteer service station of the Beijing Exhibition Center in Beijing, capital of China, Aug. 20, 2008. Many volunteers appear at public places during the Beijing 2008 Olympic Games in Beijing and Olympics co-host cities to provide information, emergency aid and translation services etc. for people from around the world. (Xinhua/Zhao Yusi)

A volunteer guides the road for foreign visitors at a volunteer service station of the Beijing Exhibition Center in Beijing, capital of China, Aug. 20, 2008. Many volunteers appear at public places during the Beijing 2008 Olympic Games in Beijing and Olympics co-host cities to provide information, emergency aid and translation services etc. for people from around the world. (Xinhua/Zhao Yusi)