have it on the highest authority idiom formal
据知情人士透露
to have been told something by someone who knows the truth
I have it on the highest authority that they are getting a divorce. 我听知情人士说他们正要离婚。
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。