drone

• 名词，指可远程操控的无人驾驶飞行器（无人机）；也指持续低沉嗡嗡的响声。

A noun referring to an unmanned aerial vehicle (UAV) or aircraft operated remotely, or a continuous low humming sound.

1. Unmanned aircraftA2formal

   A remote-controlled or autonomous flying device used for photography, surveillance, or delivery.

   无人机

   • The drone captured stunning aerial footage of the landscape.
   • Amazon is testing drones for package delivery.
   • Hobbyists often fly drones in open fields.

2. Continuous low soundB1formal

   A steady, monotonous humming or buzzing noise.

   嗡嗡声

   • The drone of the engine put me to sleep.
   • We could hear the drone of bees in the garden.
   • The constant drone of traffic was annoying.

   同义词buzzhummurmurpurrwhir

3. B2formal

   A male bee that does not work and exists only to mate with the queen.

   雄蜂

   • Drones are larger than worker bees but have no sting.
   • The hive contains thousands of workers and a few drones.
   • Drones are expelled from the hive in winter.

• 动词，指发出持续低沉单调的嗡嗡声或轰鸣声；也指以单调乏味的语调说话。

A verb used to indicate the act of making a continuous low humming sound, or speaking in a monotonous tone.

1. Make a continuous low soundB1formal

   To make a continuous, low, humming or buzzing sound.

   发出低沉连续的声音

   • The engine droned in the background as we drove.
   • Bees droned around the flowers in the garden.
   • The air conditioner droned all night long.

   同义词buzzhummurmurpurrvibratewhir

2. Speak monotonouslyB2informal

   To speak in a dull, monotonous tone without variation in pitch or pace.

   单调地说

   • The lecturer droned on for hours about ancient history.
   • He droned through his speech, putting everyone to sleep.
   • She droned on about her problems without noticing my boredom.

   同义词chantintonateintone

   反义词animateenliveninflect

短语动词变体drone on