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 real wealth of a nation grows from its soil.
天然气的未来在于其适应能力,而不仅仅是当前的主导地位。
Quality should never be compromised for the sake of quantity.
最好的艺术是慷慨的。