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  _____      ___     _____       ___      ______  
 |__  //    / _ \\  |  __ \\    / _ \\   /_   _// 
   / //    | / \ || | |  \ ||  / //\ \\  `-| |,-  
  / //__   | \_/ || | |__/ || |  ___  ||   | ||   
 /_____||   \___//  |_____//  |_||  |_||   |_||   
 `-----`    `---`    -----`   `-`   `-`    `-`'

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發送短信 : Mobile application development for classroom event management