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。