A US volunteer uses Chinese language to introduce the Confucius Institute at San Diego State University during its unveiling ceremony in southern California, the United States, on March 26, 2009. The Confucius Institute, jointly set up by by San Diego State University and China's Xiamen University, was unveiled on Thursday. [Xinhua]

Zhou Wenzhong (L), Chinese ambassador to the United States, and Stephen Webb, president of San Diego State University, unveil the Confucius Institute at San Diego State University in southern California, the United States, on March 26, 2009. The Confucius Institute, jointly set up by by San Diego State University and China's Xiamen University, was unveiled on Thursday. [Xinhua]