nosedive

名词 nosedive:

1. a sudden sharp drop or rapid decline
2. a steep nose-down descent by an aircraft
   同义词：dive, nose dive

动词 nosedive:

1. plunge nose first; drop with the nose or front first, of aircraft

1. The plane went into a nosedive.
   飞机开始俯冲。
2. Demand for oil has nosedived.
   对汽油的需求已骤减。
3. Prices have taken a nosedive.
   价格已暴跌。