3N-SING [oft on/underN](在法庭上承诺说实话的)誓言 In a court of law, when someone takes the oath, they make a formal promise to tell the truth. You can say that someone is on oath or under oath when they have made this promise. (在法庭上承诺说实话的)誓言
His girlfriend had gone into the witness box and taken the oath.
他的女朋友进入证人席并立了誓。
Under oath, Aston finally admitted that he had lied.
在宣誓的约束下,阿斯顿终于承认自己撒了谎。
Three officers gave evidence on oath against him.
3位警官经宣誓提出了对他不利的证据。
4N-COUNT (表示愤怒、震惊的)咒骂,诅咒 An oath is an offensive or emphatic word or expression which you use when you are angry or shocked. (表示愤怒、震惊的)咒骂,诅咒 [written]
Wellor let out a foul oath and hurled himself upon him.