A QR code placard for mobile payment hangs over a stall at a wet market in Chengdu, southwest China's Sichuan Province, July 20, 2021. Fresh produce, considerate services, and convenient payment are all at your finger tips when you visit wet markets available in most communities in Chengdu. Tiny as they are, these markets bear witness to the vigorous and happy life of the local residents. (Xinhua/Tang Wenhao)