know all there is to know about sth Meaning in the Cambridge English Dictionary
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Meaning of “know all there is to know about sth” in the English Dictionary

"know all there is to know about sth" in British English

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know all there is to know about sth

approving to know a lot about a ​subject or ​activity, or be very good at it
(Definition of know all there is to know about sth from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “know all there is to know about sth”
in Chinese (Simplified) 对某一科目或活动很了解或很擅长…
in Chinese (Traditional) 對某一學科或活動很瞭解或很擅長…