It's been hellish, and it will likely go down as the toughest stretch in many Americans' lives.
원문출처 : https://www.cnn.com/2021/03/13/us/lockdown-lessons-learned-covid-19/index.html
원문출처 : https://www.cnn.com/2021/03/13/us/lockdown-lessons-learned-covid-19/index.html