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

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發送短信 : Using a vocabulary website to increase the vocabulary size of IT workers in Hanoi