Tang Zhenya paddles on Hongze Lake in Hongze District of Huai'an City, east China's Jiangsu Province, March 30, 2019. The 55-year-old Tang Zhenya has been a postman for 20 years since 1999. In order to deliver mails and packages for 11 fishing villages on 300 square kilometers lake area, he has to paddle on average 20 kilometers, sometimes even 40 kilometers, a day. In 20 years, he has paddled 200,000 kilometers to send 100,000 mails and packages. Whenever convenient, his wife Yan Ling would help him with delivering. (Xinhua/Huang Xiaoyong)