https://blog.wongcw.com/2019/07/28/%e4%b8%89%e5%a4%a7%e9%81%8b%e7%87%9f%e5%95%86%e5%9b%9e%e6%87%89%e7%94%a8%e6%88%b6%e4%bb%a3%e8%a1%a8%e6%8f%90%e5%95%8f%ef%bc%9a%e6%b5%81%e9%87%8f%e8%a8%88%e8%b2%bb%e6%96%b9%e5%bc%8f%e8%83%bd%e5%90%a6/
三大運營商回應用戶代表提問:流量計費方式能否簡化