lotteries

英 [ˈlɒtəriz]

美 [ˈlɑtəriz]

n. (用发行彩票为政府、慈善机构等集资的)抽彩给奖法; 碰运气的事
lottery的复数

柯林斯词典

N-COUNT （通过发行彩票方式的）抽彩给奖法，博彩
Alotteryis a type of gambling game in which people buy numbered tickets. Several numbers are then chosen, and the people who have those numbers on their tickets win a prize.
1. ...the national lottery.
  国家博彩
N-SING 听天由命的事；全凭运气的事
If you describe something asa lottery, you mean that what happens depends entirely on luck or chance.
1. The stockmarket is a lottery...
  股市买卖全看运气。
2. Which judges are assigned to a case is always a bit of a lottery.
  一个案子安排哪些法官来审理，往往有点看运气。