End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
https://9lib.co/document/yd7ej05j-全部選擇題請用2B鉛筆將答案畫在電腦卡上面作答.html