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  ______     ___      _  _     _____             
 /_   _//   / _ \\   | \| ||  |  ___||     ___   
   | ||    / //\ \\  |  ' ||  | ||__      /   || 
  _| ||   |  ___  || | .  ||  | ||__     | [] || 
 /__//    |_||  |_|| |_|\_||  |_____||    \__ || 
 `--`     `-`   `-`  `-` -`   `-----`      -|_|| 
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發送短信 : Ethnomathematics for capacity building in mathematics education