A stuff walks by a high speed train in Shanghai Hongqiao railway station, east China's Shanghai, Feb. 20, 2011. The Beijing-Shanghai high speed railway started a test run on its Shanghai section on Sunday. The Beijing-Shanghai high speed rail service provides a four-hour link between the twin cosmopolitan cities in China once fully in operation late 2011. Preparations have been made for a test run which will be lauched soon. [Xinhua/Chen Fei]