Is she prepared to give evidence on oath?

她愿意宣誓据实作证吗？

《牛津词典》

Let your smiling lips say on oath how my voice lost itself in silence like a drunken bee in the lotus.

让你含笑的唇儿发个誓，告诉我我的声音怎样在沉默中消失，像一只在荷花中沉醉的蜜蜂。

youdao

So I declared on oath in my anger, 'They shall never enter my rest.'

所以我在怒中起誓，说，他们断不可进入我的安息。

youdao

George Washington was the first president to place his hand on a Christian Bible when taking the oath of office.

VOA: special.2009.01.19

Did I conceive all this people, did I bear them, that You should say to me, 'Carry them in your bosom as a nurse carries an infant,' to the land that You have promised on oath to their fathers?

这些人是我十月怀胎生下的吗？,您告诉我吧，如养育之父抱着吃奶的孩子’,直抱到您起誓应许他们祖宗的地方去？

耶鲁公开课 - 旧约导论课程节选

If then You slay this people to a man, the nations who have heard Your fame will say, 'It must be because the Lord was powerless to bring that people into the land He had promised them on oath that He slaughtered them in the wilderness.

如今你若把这些人杀了，那听到你名声的国家会说,耶和华因为不能把这些人领进,向他们起誓的应许之地,所以在旷野中把他们杀了。

耶鲁公开课 - 旧约导论课程节选

He has not been arrested, he was not speaking on oath but the Prime Minister did plead guilty.

BBC: David Cameron: A second chance

The jockey had previously enjoyed a highly successful partnership with Henry Cecil, winning the Derby in 1999 on Oath.

BBC: Kieren Fallon

The jockey claimed the first of three Epsom Derby successes when he won the big race for Cecil on Oath in 1999.

BBC: SPORT | Other Sport... | Horse Racing | Profile: Kieren Fallon