vt.& vi.<古,文>保证,断言,承认;
例句:
Using CEF ( Cisco express forward) in the network core layer equipment we can avouch for data packet transmission best effort.
在核心层设备上,开启Cisco的快速交换(CEF)功能,保证数据包的最大努力传输;
We can avouch for the quality.
我们保证质量。
I am willing to employ your friend if you will avouch his integrity.
如果你能保证你的朋友是个诚实的人,那么我很乐意聘用他。