affirm/ əˈfɜːm /

1.vt.

证明,证实

His statements have been affirmed by the witness.
他的陈述得到了证人的证实。
2.vi.[Law] 

宣誓,起誓

His wife affirmed his innocence during the trial.
他的妻子在整个审理过程中都坚信他是无辜的。
3.vt.

同意,支持

She did not affirm to the requests.
她没有同意那些请求。
4.vt.

断言,申明,主张