"Scratch lottery" or simply "scratch off" is a common term used to describe the act of reveapng a hidden message or prize on a lottery ticket by scratching a coated layer. This term originated from the physical act of scratching the surface of the ticket to reveal the hidden information.
Example sentences:
I always buy a scratch lottery when I go to the convenience store.
I won a prize by scratching off the winning combination on my lottery ticket.
Translations:
我去便利店总是买刮奖彩票。
我在我的彩票上刮开了中奖组合，赢得了奖品。