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 _    _    _    _     _  _      ___     ______   
| || | || | || | ||  | \| ||   / _ \\  |      \\ 
| || | || | || | ||  |  ' ||  / //\ \\ |  --  // 
| \\_/ || | \\_/ ||  | .  || |  ___  |||  --  \\ 
 \____//   \____//   |_|\_|| |_||  |_|||______// 
  `---`     `---`    `-` -`  `-`   `-` `------`

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發送短信 : Web-based English grammatical question analysis and retrieval system