https://blog.wongcw.com/2020/06/25/%e7%be%8e%e5%9c%8b%e5%92%8c%e6%ad%90%e7%9b%9f%e8%a8%8e%e8%ab%96%e9%87%8d%e5%95%9f%e5%9c%8b%e9%9a%9b%e6%97%85%e8%a1%8c%e6%ad%a4%e5%89%8d%e6%ad%90%e7%9b%9f%e8%80%83%e6%85%ae%e7%b9%bc%e7%ba%8c%e5%b0%8d/
美國和歐盟討論重啟國際旅行此前歐盟考慮繼續對美關閉邊境