People besieged by floods wait for rescuers in Baisha town, Jiangjin District in Southwest China's Chongqing province on July 23, 2012. The severest floods in the district's past 60 years affected more than 80,000 residents and inundated more than 8,500 houses, causing 120 million yuan of direct economic loss. [Photo/Xinhua]

Passengers wait in thick crowds before being able to exit Weihai Railway Station in East China's Shandong province on Dec 21, 2012. [Photo/Xinhua]