Definition
to have received information from a source considered to be extremely reliable or knowledgeable.
從最高級的知情人士那裡得知某事
I have it on the highest authority that the company will announce a major merger.
我從最高權威得知，公司將宣布一項重大合併。
I have it on the highest authority that this information is accurate.
我從最高權威得知，這條資訊是準確的。
I have it on the highest authority that they are considering expanding their operations.
我從最高權威得知，他們正在考慮擴展業務。