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.
경북 대학교 연구팀, 다중 거대 블랙홀에 대한 새로운 탐지 방법 제안 https://aju.news/550267.html