They gained the authority to compel sworn testimony from a number of women about Mr Clinton's sex life.他们得到授权,可以强令几名女性就克林顿先生的性生活宣誓作证。We have a witness who would swear to it in a court of law.我们有一位证人愿意在法庭上宣誓作证。He gave testimony under oath before the grand jury.他在大陪审团面前宣誓作证。He made a deposition that he had witnessed the accident.他宣誓作证自己目睹了那起事故。