“决雌雄于”可以翻译为 “determine the winner/loser (or decide the outcome) in...” 或者更简洁地表达为 “settle the matter (of who is superior) in...” 。其中“in”后面接具体发生的场景、领域或地点等。
例如：
他们决定在赛场上决雌雄于。
They are determined to settle the matter of who is superior on the sports field. （更自然的说法可以是：They are determined to decide the winner on the sports field. ）
两大高手决定在武林大会上决雌雄于。
The two great masters decided to determine the winner at the martial arts gathering.