Cao Zeying, Principal of Wangmo Second Primary School, points at the damaged bounding wall of her school in Wangmo County, southwest China's Guizhou Province, June 7, 2011. Rain-triggered floods hit Wangmo County on Monday. About 6,000 students from four schools had to stay at home Tuesday as their schools were rendered inaccessible by water. [Xinhua/Shi Xinrong]