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.
1831年12月27日 達爾文啟航前往南美洲 旅程奠定演化論基礎 https://geneonline.news/charles-darwin-voyage-on-the-beagle/