welfare lottery

• 福利彩票

welfare lottery的用法和样例：

例句

1. People canme in droves to buy lottery tickets.
   人们成批地来买福利彩票。
2. Meanwhile, special lotteries have been instituted to collect funds for social welfare undertakings.
   此外，中国还通过发行社会福利彩票募集资金支持社会福利事业。