In March 2020, Europe's towns, cities and airports ground to a halt as the first wave of Covid-19 sent residents indoors. In the following months, many people began working from home. But amid the chaos and uncertainty, key workers including farm staff, transport employees and postal workers continued to perform their jobs as normal, forming an often invisible frontline during the pandemic.


원문출처 : https://www.cnn.com/2020/12/29/europe/key-workers-europe-2020-intl/index.html