短语词组短語Droning Bureaucrats 官腔公職droning cello 低音大提琴droning tinnitus 耳鳴嗡嗡Droning Damselfly 嗡響蜻蜓droning sound 低沉的聲音Hear a jet droning 聽到一架噴氣式飛機嗡嗡作響target drone 目標靶機 返回 droning