a dangerous game in which a person shoots at their own head with a gun that contains only one bullet (in a gun that can take six), so that the person does not know if the gun will fire or not俄罗斯轮盘赌（危险游戏，参加者用装有一发子弹的转轮手枪对准自己头部射击）
(figurative)The airline was accused of playing Russian roulette with passenger safety.这家航空公司被指责将乘客安全当儿戏。🔊🔊