The Tokyo Olympics, postponed in 2020 during the early days of the Covid-19 pandemic, are facing increasing hurdles in putting on a 2021 show.
원문출처 : https://www.cnn.com/travel/article/japan-olympics-us-covid-travel-advisory/index.html
원문출처 : https://www.cnn.com/travel/article/japan-olympics-us-covid-travel-advisory/index.html