voucher
US /ˈvaʊ.tʃɚ/
UK /ˈvaʊ.tʃɚ/

1.
1.
证明, 担保
to confirm or support something with evidence
:
•
His testimony will voucher for her innocence.
他的证词将证明她的清白。
•
Can you voucher for the authenticity of this document?
你能证明这份文件的真实性吗?
证明, 担保
to confirm or support something with evidence