have something on good authority Definition in the Cambridge English Dictionary
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Definition of “have something on good authority” - English Dictionary

Definition of "have something on good authority" - British English Dictionary

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have something on good authority

to be ​able to ​believe a ​piece of ​information because you ​trust the ​person who told you it: I have it on good authority that she's getting ​married.
(Definition of have something on good authority from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Translations of “have something on good authority”
in Chinese (Simplified) 有可靠的根据…
in Chinese (Traditional) 有可靠的根據…