I swear I could defeat you in a duel!

我发誓我能在决斗中打败你！

金山词霸

Pride spurred the man to fight.

自尊心刺激他去决斗.

《现代英汉综合大词典》

The duellists had shot each other in the arm, so honors were even and they parted on good terms.

两位决斗者都射伤对方的手臂, 因此势均力敌,结果他们友好地分手了.

《简明英汉词典》

He had killed a man in a duel.

他在一场决斗中杀了一名男子。

辞典例句

Always , it was a duel in which she was worsted.

那往往是两人之间的一次决斗,而她总是输的.

飘（部分）

You want to challenge him to a duel? "

你是不是要找他决斗? ”

汉英文学 - 围城

Hyde Park also became a favourite place for duels.

海德公园也成了决斗的好地方.

辞典例句

Duroy was forced to challenge his disparager to duel.

杜洛瓦不得不向诋毁他的人提出决斗.

辞典例句

Aeneas challenged Turnus to decide the contest by single combat.

埃涅向图努斯提出挑战,两人单独决斗比试高低决定战争的胜负.

辞典例句

They both decided that the matter be settled by a duel.

他俩决定以决斗来解决这件事.

辞典例句

The knight challenged his rival to a duel.

那位骑士向敌手提出决斗的挑战.

辞典例句

It was the beginning of a protracted duel.

这是一场持久的决斗的开始.

辞典例句

He's shot a man in a duel.

他跟人决斗闹出了人命案子.

辞典例句

Forced my brother to draw upon him, and has fallen by my brother's sword -- like a gentleman. "

逼着我弟弟拔剑决斗, 把他杀了 —— 倒像个贵族一样. ”

英汉文学 - 双城记

But I, though a common dog, so struck at him as to make him draw.

可是我却用剑刺他,逼他跟我决斗—-虽然我是条卑贱的狗.

英汉文学 - 双城记