Chinese Vice Premier Han Zheng, also member of the Standing Committee of the Political Bureau of the Communist Party of China Central Committee, visits Traditional Chinese Medicine Science and Technology Industrial Park of Cooperation between Guangdong and Macao in Zhuhai, south China's Guangdong Province, May 21, 2018. Han made an inspection and research tour in Guangdong from May 20 to 22. (Xinhua/Wang Ye)