Science's biggest achievement in 2020 was undoubtedly the rapid development of effective vaccines against Covid-19 -- a massive feat that should be widely celebrated and lauded with prizes in the years to come.
원문출처 : https://www.cnn.com/2020/12/29/world/science-discoveries-2020-scn/index.html
원문출처 : https://www.cnn.com/2020/12/29/world/science-discoveries-2020-scn/index.html