發送短信 : Mind change speed-up for learning languages from positive data

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