頓首 [ㄉㄨㄣˋ ㄕㄡˇ; dun4 shou3]
  kowtow
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  頓首
  とんしゅ
  とんじゅ
  noun (common) (futsuumeishi)
  honorific or respectful (sonkeigo) language
  [formula at the end of a letter]
  Respectfully yours
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  [orig. meaning]
  kowtowing
  kowtow
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