As the coronavirus pandemic rages on, transportation officials around the world have been looking for ways to keep passengers and crew safe on board planes.
원문출처 : https://www.cnn.com/travel/article/china-civil-aviation-administration-coronavirus-guidance-intl-hnk/index.html
원문출처 : https://www.cnn.com/travel/article/china-civil-aviation-administration-coronavirus-guidance-intl-hnk/index.html