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English definition of “take a leaf out of sb's book”

take a leaf out of sb's book

to copy something that someone else does because it will bring you advantages: Maybe I should take a leaf out of Rick's book and start coming in at ten every morning.Copying and copiesForgery
(Definition of take a leaf out of sb's book from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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