to vouch for
[phrase form: vouch]
01
担保, 保证
to say with certainty that someone or something is good or reliableتضمین
例子
The colleague vouched for the reliability of the new software.
同事保证了新软件的可靠性。
The witness vouched for the defendant's innocence in court.
证人在法庭上担保了被告的无辜。
