快速 [ㄎㄨㄞˋ ㄙㄨˋ; kuai4 su4]
  fast
  high-speed
  rapid
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  快速
  かいそく
  adjectival nouns or quasi-adjectives (keiyodoshi)
  noun (common) (futsuumeishi)
  nouns which may take the genitive case particle `no'
  high speed
  celerity
  mobility
  express (train that bypasses many stations)
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