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.
http://yoozfile.ir/file/46053/طرح-درس-و-روش-تدریس-علوم-دوم-درس2--هوای-سالم-آب-سالم