The Chinese rowing team takes an oath during the departure ceremony for 2012 London Olympic Games in Dandong, northeast China's Liaoning Province on July 15, 2012. The team has completed a one-month-long pre-season training. The Chinese rowing team will leave for London on July 20.[Photo/Xinhua]

Members of the Chinese rowing team training in Dandong, northeast China's Liaoning Province on July 15, 2012.[Photo/Xinhua]

Members of the Chinese rowing team in training in Dandong, northeast China's Liaoning Province on July 15, 2012.[Photo/Xinhua]

The calluses on the hands of Tang Bin, champion of the Women’s Quadruple Sculls in the 2008 Beijing Olympic Games on July 15, 2012.[Photo/Xinhua]

Tang Bin, champion of the Women’s Quadruple Sculls at the 2008 Beijing Olympic Games, attends the departure ceremony of the Chinese rowing team for 2012 London Olympic Games in Dandong, northeast China's Liaoning Province on July 15, 2012.[Photo/Xinhua]