A farmer driving a farm machine plows a field in Shijia Village, Yongzhou City of central China's Hunan Province, March 18, 2025. With the approaching of spring equinox, or Chunfen in Chinese, the fourth solar term in the Chinese lunar calendar which will fall on March 20 this year, farmers across the country are busy working at fields. (Photo by Jiang Keqing/Xinhua)