資料來源:https://www.cnbc.com/2022/07/27/watch-live-biden-speaks-about-his-negative-covid-test-and-the-broader-pandemic-effort.html
資料來源:https://www.cnbc.com/2022/07/27/watch-live-biden-speaks-about-his-negative-covid-test-and-the-broader-pandemic-effort.html