An old man holding an umbrella walks in the rain in Guangzhou, capital of south China's Guangdong Province, on May 20, 2009. A rainstorm hit Guangzhou on Wednesday and affected drainage system and traffic. [Xinhua]

A bus runs in the rain in Guangzhou, capital of south China's Guangdong Province, on May 20, 2009. A rainstorm hit Guangzhou Wednesday and affected drainage system and traffic. [Xinhua]