Farmers work in a field in Yong'an Village of Dongmen Township, Luocheng County, south China's Guangxi Zhuang Autonomous Region, April 20, 2019. Guyu, literally meaning "Rain of Millet", is the sixth of the 24 solar terms created by ancient Chinese to carry out agricultural activities. For the year 2019, the day of Guyu falls on April 20. (Xinhua/Wu Yaorong)