v.保证( vouch的第三人称单数 )，担保，确定，确定地说...

Who vouches for your good conduct? "谁是你的保人? ”This paper vouches for the authenticity of the painting.这份文件担保这幅画的可信赖姓.The success of the campaign vouches for the candidate popularity.竞选的成功证实了这位候选人的名望....

vouches的音标：...