to declare (something) to be true or genuinea scientist who can vouch for the accuracy of the results
a scientist who can vouch for the accuracy of the results
attest, authenticate, avouch, certify, testify (to), witness
guarantee, warrantaffirm, assert, aver, avow, profess, vow
英语同义词词典收录了63618条英语词条,基本涵盖了全部常用同义词或反义词的辨析及翻译,是英语学习的有利工具。