rapid

rapid
adjective
  1. happening in a short time or at a great rate
    快的,迅速的;迅捷发生(或进行)的
    the country's rapid economic decline.
    该国经济的迅速衰退。
    they lost three wickets in rapid succession.
    他们很快连输三局。
    ■(of movement or activity) characterized by great speed
    (移动,活动)快速的
    his breathing was rapid and jerky.
    他呼吸急促且伴有抽搐。
noun
  1. (一般作 rapids)a fast-flowing and turbulent part of the course of a river
    急流,湍滩
派生
rapidity
noun
rapidly
adverb
rapidness
noun
语源
  1. mid 17th cent.: from Latin rapidus, from rapere 'take by force'
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