Is she prepared to give evidence on oath?

她愿意宣誓据实作证吗？

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。

He was on oath to tell all he saw.

他已宣誓要把所看到的一切都讲来出。

The judge reminded the witness that she was on oath.

法官提醒证人已宣誓不作伪证。

I I testify on oath that I have not noticed the accident.

我发誓声明我没有注意到这场事故。