UAVs are hard to shoot down.

无人机难以击落。

youdao

How effective are UAVs?

无人机的使用效果如何？

youdao

Police like these helicopter UAVs, soldiers less so.

警察比较喜欢这类无人直升机，军人较少些。

youdao

Might UAVs eventually replace manned combat aircraft altogether?

那么无人机是否可能完全替代人工驾驶的战斗机？

youdao

Might UAVs eventually replace manned combat aircraft altogether?

那么无人机是否可能完全替代人工驾驶的战斗机？

youdao