In this aerial photo taken on April 20, 2019, farmers work in a field in Shengji Village of Jingzi Township, Shuangfeng County, Loudi, central China's Hunan Province. 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/Li Jianxin)