A farmer works in a field in Liangtian Village of Congjiang County, Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province, 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/Long Mengqian)