發送短信 : What the progressive aspect tells us about processes

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