A villager picks sweet wormwood herbs for the preparation of traditional food "Shefan" at Tianping Village of Tianping Township in Yuping Dong Autonomous County of Tongren City, southwest China's Guizhou Province, March 17, 2019. In the early spring time, local people of the Dong ethnic group usually make "Shefan", which is made of glutinous rice, preserved meat, artemisia annua, green onion and other ingredients. (Xinhua/Hu Panxue)