1. Many drones are used for aerial photography.
许多无人机被用于航拍。

2. The sound of drones filled the sky during the event.
活动期间空中充满了无人机的声音。

3. Farmers use drones to monitor crops.
农民使用无人机监测作物。

4. Several drones were flying over the stadium.
几架无人机在体育场上空飞行。

A: Did you see the drones over the city last night?
A：你昨晚看到城市上空的无人机了吗？

B: Yes, they were taking photos of the festival.
B：看到了，它们在拍摄节日活动。

1) 指无人驾驶飞行器，用于拍摄或监控

2) 指持续低沉、单调的嗡嗡声

3) 可指无人机群或大量飞行装置

1. 无人驾驶飞行器；无人机

e.g. The drones were used for mapping the area.
这些无人机被用于绘制该地区地图。

2. 持续的低沉嗡嗡声

e.g. The drones of insects filled the night air.
昆虫的嗡嗡声充满了夜晚的空气。

noun

1. Unmanned aerial vehicles that can fly autonomously or be remotely controlled.

2. A continuous low humming or buzzing sound.