The United States is closer than ever to beating Covid-19, with half the country vaccinated and more restrictions lifting.
원문출처 : https://www.cnn.com/2021/05/25/politics/wuhan-lab-covid-origin-theory/index.html
원문출처 : https://www.cnn.com/2021/05/25/politics/wuhan-lab-covid-origin-theory/index.html