Former Japanese Prime Minister Yukio Hatoyama (front) and his wife bow as they mourn for the Nanjing Massacre victims at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of East China's Jiangsu province, Jan 17, 2013. [Photo/Xinhua]

Peng Shuai of China serves to Maria Kirilenko of Russia during their women's singles match at the Australian Open tennis tournament in Melbourne Jan 17, 2013. [Photo/Agencies]

Hundreds of fishing boats are seen at a harbor in Jinzhou New district, Dalian city, Northeast China's Liaoning province, Jan 17, 2013. The floating ice covers 5,429 square kilometers of Bohai Sea and 5,808 square kilometers of northern Yellow Sea, the National Marine Forecasting Station reported on Thursday. [Photo/Xinhua]