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

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發送短信 : To thank or not to thank: Understanding the differences between gratitude and indebtedness after receiving a favor through emotion appraisals, motivations and behaviors