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 har·mat·tan /ˌhɑrməˈtæn, hɑrˈmætṇ/
 乾燥的熱風

 Har·mat·tan n.  A dry, hot wind, prevailing on the Atlantic coast of Africa, in December, January, and February, blowing from the interior or Sahara. It is usually accompanied by a haze which obscures the sun.
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 harmattan
      n : a dusty wind from the Sahara that blows toward the western
          coast of Africa during the winter