rapidity
n. 迅速,急速; 速度; 险峻; 快度
A rapid change is one that happens very quickly.
...the country's rapid economic growth in the 1980's...
20世纪80年代该国经济的迅速增长
This signals a rapid change of mind by the government.
这标志着政府思想的急剧转变。
A rapid movement is one that is very fast.
He walked at a rapid pace along Charles Street.
他快步走过查尔斯大街。
...whether the Tunnel will provide more rapid car transport than ferries...
隧道是否能够提供比渡船更加快捷的车辆运输
1. a rate that is rapid
The water rushed through the holes with great rapidity.
湍急的水流奔涌过洞口。
The styles change with bewildering rapidity.
风格多变,令人应接不暇.
Animal and vegetable pests spread with extreme rapidity.
动植物疫害传播极快.
The soldiers loaded and discharged with great rapidity.
士兵们迅速装子弹发射.
The film shows the rapidity of the changes in this area of medicine.
这部电影展示了这一医学领域里的迅速变化.