Zheng Caixia and Zheng Dongxia are not the same person. According to relevant public information, in order to improve the cultivation level of Tai Ji Chuan fans, China Tai Ji Chuan Newspaper held an Artest Tai Ji Chuan intensive class in Zhengzhou, Henan Province from 20 10 to 10 during the National Day on August 8. The eldest sister Zheng Dongxia, nicknamed Dongdong, and the second sister Zheng Caixia, nicknamed Niuniu.