Imagine your daily routine being entirely dependent on a smart phone app. Leaving your home, taking the subway, going to work, entering cafes, restaurants and shopping malls -- each move, dictated by the color shown on your screen. Green: you're free to proceed. Amber or Red: you're barred from entry.
원문출처 : https://www.cnn.com/2020/04/15/asia/china-coronavirus-qr-code-intl-hnk/index.html
원문출처 : https://www.cnn.com/2020/04/15/asia/china-coronavirus-qr-code-intl-hnk/index.html