an activity in which people buy tickets with different numbers, some of which are later chosen to win prizes, that is organized in order to make money for a good social purpose
a raffle ticket/prize抽彩奖券／奖品
I have never won anything in a raffle.我从来没在抽彩中赢得过任何奖品。
raffle
verb[ T ]uk/ˈræf.əl/us/ˈræf.əl/
（兑奖售物活动中）以…为奖品
to offer something as a prize in a raffle
We are going to raffle off a car for the hospital appeal.为医院举行的慈善抽奖活动中，我们将用一辆汽车作为奖品。