刮刮樂

刮刮樂是一种小卡片，卡片上有灰色塗層，用來隐藏密码等一些不方便直接顯示的信息，灰色塗層刮開後就能顯示密碼。彩票、儲值卡等發行形式通常為刮刮樂。[1]

参考文献
  1. . 25 April 2017 [2023-01-24]. （原始内容存档于2023-01-24）.
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