大寒 [ㄉㄚˋ ㄏㄢˊ; da4 han2]
  Great Cold, 24th of the 24 solar terms 二十四節氣 20th January-3rd February
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  大寒
  だいかん
  noun (common) (futsuumeishi)
  (time of) extreme cold
  see: 二十四節気
  "major cold" solar term (approx. Jan 20, roughly the coldest time of the year)
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