drone

sound(声音)

1. Singular(单数)

   a sustained, low-pitched humming sound that does not change in tone

   嗡嗡声；持续低沉的声音

   • The constant drone of the engine was irritating.

     引擎持续的嗡鸣声令人烦躁。

   • The drone of the lawnmower could be heard in the distance.

     远处可以听到割草机的嗡鸣声。

   • The low drone of the air conditioner filled the room.

     空调的低沉嗡鸣声充满了整个房间。

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vehicle(飞行器)

1. Countable(可数名词)

   an unmanned aircraft controlled remotely, often used for surveillance or military purposes

   无人驾驶飞行器；遥控飞机

   • The military used drones for reconnaissance missions.

     军方使用无人机进行侦察任务。

   • This drone is equipped with a high-resolution camera.

     这架无人机配备了高分辨率相机。

   • The drone hovered in the air, monitoring the situation below.

     无人机在空中盘旋，监视下方的状况。

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insect(昆虫)

1. Countable(可数名词)

   a male bee, which does not have a stinger and whose primary purpose is to mate with the queen bee

   雄蜂；公蜂

   • Drones are larger in size and do not have stingers.

     雄蜂体型较大且没有螫针。

   • The primary role of drones in a hive is to mate with the queen bee.

     雄蜂在蜂巢中的主要角色是与蜂后交配。

1. Intransitive(不及物动词)

   to emit a continuous, low-pitched humming sound

   发出嗡嗡声；持续低沉地响

   • The air conditioner droned all night.

     空调整晚发出嗡嗡声。

   • The radio droned with a low buzz.

     收音机发出低沉的嗡嗡声。

   • The airplane droned overhead.

     飞机在头顶上嗡嗡作响。