vouch
v[Ipr]
1 ~ for sb/sth take responsibility for or express confidence in (a person, his behaviour, etc); guarantee 为(某人、 其行为等)担保或作证; 保证
I can vouch for him/his honesty. 我可以为他[他的诚实]作担保.
2 ~ for sth confirm (a claim, etc) by producing evidence or drawing on one's own experience(提供证据或现身说法)确定(某权利要求等)
Experts vouch for the painting's authenticity. 由专家确认该画是否为真迹.
Kate, I'm sorry about that argument. I apologize for being so angry with you.
凯特,那次争吵我很抱歉。我为跟你发火向你道歉。
Before Annie Sullivan came to our house, one or two people had told my mother that I was simple-minded.
安妮·莎利文来到我们家之前,已有一两个人告诉我母亲,说我头脑简单。
At the time of his death, one person praised him as follows: Future generations, it may be, will hardly believe that such a person as this walked upon this earth.