vouch for something/someone
phrasal verb with vouch verb [ + that ] uk/vaʊtʃ/ us/vaʊtʃ/
为…担保;保证
to say that you know from experience that something is true or good, or that someone is honest and has a good character
Patricia has checked the reports and can vouch for the accuracy of the information. 帕特里夏已经核实过报告，可以保证信息的准确性。