it'll cost you Definition in the Cambridge English Dictionary
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Definition of “it'll cost you” - English Dictionary

Definition of "it'll cost you" - British English Dictionary

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it'll cost you

informal it will be very ​expensive: It'll cost you to have ​yourroofrepaired.
(Definition of it'll cost you from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Translations of “it'll cost you”
in Chinese (Simplified) 要花很多钱, 会很贵…
in Chinese (Traditional) 要花很多錢, 會很貴…