もくもく
  モクモク
  adverb taking the `to' particle
  adverb (fukushi)
  onomatopoeic or mimetic word
  rising (smoke, clouds, etc.)
  rolling up
  billowing up
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  黙々
  黙黙
  もくもく
  `taru' adjective
  adverb taking the `to' particle
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  silent
  mute
  dumb
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