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English definition of “clamp down on sth”

clamp down on sth

phrasal verb with clamp     /klæmp/ verb
to take strong action to stop or limit a harmful or unwanted activity: The government is clamping down on teenage drinking.Limiting and restrictingPreventing and impeding
(Definition of clamp down on sth from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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