Children of an acrobatic troupe exercise at a training area in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, May 21, 2013. Established in 1958, the acrobatics troupe was now affiliated with Ningxia Yinchuan Art Theatre. During the past few years, over 30 children between 5 and 13 years old have been admitted to the troupe to exercise acrobatics. In order to perform well on the stage, they exert much effort on exercising. Besides, they also learn general courses such as maths, Chinese and English. Yao Xing, deputy principal of the troupe, said that acrobatics requires painstaking effort, which will pay off one day. [Photo/Xinhua]