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  _  _      ___      _  __     ___      _____   
 | \| ||   / _ \\   | |/ //   / _ \\   / ____|| 
 |  ' ||  / //\ \\  | ' //   | / \ || / //---`' 
 | .  || |  ___  || | . \\   | \_/ || \ \\___   
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 `-` -`  `-`   `-`  `-` --`   `---`     `----`

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發送短信 : Boundary spanning by design: Insights from a vendor perspective