Send the following on WhatsApp
Continue to Chat微信限時灰度測試新功能:可以直播上課了 https://blog.wongcw.com/2020/03/01/%e5%be%ae%e4%bf%a1%e9%99%90%e6%99%82%e7%81%b0%e5%ba%a6%e6%b8%ac%e8%a9%a6%e6%96%b0%e5%8a%9f%e8%83%bd%ef%bc%9a%e5%8f%af%e4%bb%a5%e7%9b%b4%e6%92%ad%e4%b8%8a%e8%aa%b2%e4%ba%86/