fight it out 据理力争；一决雌雄；竞争；争论；争辩

【例句】
They hadn't reached any agreement so we left them to fight it out.
他们还没有达成协议，所以我们让他们争出个结果。

Both teams are determined to fight it out.
两个球队要较量一番，非要一决雌雄。