nose dive
英 美
Due to keen competition, his business took a nose dive.
由于激烈的竞争，他的生意一落千丈。
The thermometer takes a nose dive the first day of winter.
入冬第一天气温计的水银柱骤降。
His pilot took off amidst a volley of gunfire but, confused by the hectic events of the moment, threw the wrong switch, sending the plane into a nose dive.
驾驶员在枪林弹雨中起飞，但情形混乱，令他手足无措，错扳了开关，让这架飞机俯冲下来。
