https://blog.wongcw.com/2020/09/08/%e5%b7%b4%e8%a5%bf%e6%b0%91%e8%aa%bf%ef%bc%9a1-4%e5%b7%b4%e8%a5%bf%e4%ba%ba%e4%b8%8d%e9%a1%98%e6%8e%a5%e7%a8%ae%e6%96%b0%e5%86%a0%e7%96%ab%e8%8b%97/
巴西民調:1/4巴西人不願接種新冠疫苗