duke it out
US /duːk ɪt aʊt/
UK /duːk ɪt aʊt/
1.
一决高下, 打一架
to fight or compete to resolve a dispute or determine a winner
:
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The two rivals decided to duke it out in the final round.
两位对手决定在最后一轮一决高下。
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Let's just duke it out and see who's right.
我们来一决胜负，看看谁是对的。