showdown
/ˈʃəʊdaʊn/noun
1- a final test or confrontation intended to settle a dispute最后的较量, 一决雌雄, 摊牌。
1.1
- (in poker or brag) the requirement at the end of a round that the players who remain in should show their cards to determine which is the strongest hand（扑克牌或勃莱格牌戏用语）摊牌。