投球
  とうきゅう
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  pitching
  throwing a ball
  bowling (in cricket)
  pitched ball
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  等級
  とうきゅう
  noun (common) (futsuumeishi)
  grade
  class
  degree
  rank
  rating
  order
  points
  astronomy, etc. term
  magnitude
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  討究
  とうきゅう
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  investigation
  study
  research
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