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Chinese
快速 [kuài​sù]
fast; high-speed; rapid
Japanese
快速 かいそく 同音

noun

  1. high speed; rapidity
  2. abbrev. rapid-service train (not as fast as express); rapid train
Korean
쾌속 [快速]
Noun
high speed; The state of a speed being very fast, or such a speed.
Notes
Example Sentences
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