https://blog.wongcw.com/2020/05/03/%e6%af%94%e7%88%be%c2%b7%e8%93%8b%e8%8c%a8%ef%bc%9a%e9%97%9c%e6%96%bc%e6%96%b0%e5%86%a0%e7%96%ab%e2%80%8b%e2%80%8b%e8%8b%97%e4%bd%a0%e9%9c%80%e8%a6%81%e7%9f%a5%e9%81%93%e7%9a%84%e4%ba%8b/
比爾·蓋茨:關於新冠疫​​苗你需要知道的事