發送短信

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

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發送短信 : The science of effective learning with spacing and retrieval practice