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.
项目经理思维导图——10 在不了解团队能力的情况下,如何准确的对项目的资源、成本、工时进行估算,如何更好的把控项目进度? https://codingnote.cc/p/13378/