發送短信 : Durability of shuttlecock

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