无人机（UAS/Drone）在投放欧盟市场之前，需要获得CE认证，以确保其符合欧盟的安全、健康和环境保护要求。

In this diagram, the part where the two circles overlap represents people who enjoy both reading and jogging. 在这张示意图中，两个圆圈重叠的部分代表既喜欢读书又喜欢慢跑的人们。 Follow the instructions in the diagram, and you will ...