无人机的安全性不是选项,而是底线。
Drone safety is not an option, but a baseline.
The key to progress in science is persistence and an open mind.
.I’m playing against great players, playing against the best in the world. The competition - that’s what I’ve always wanted..
你对消极的人回应越少,你的生活就越平静。
The truth is rarely pure and never simple.