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rev up (sb/sth)

phrasal verb with rev
 
 
/rev/ verb [I or T] (-vv-)

Definition

to become more active, or to make someone or something become more active: The hotel is revving up for the busy summer season. drugs which rev up your nervous systemBusy and activeHurrying and doing things quickly
(Definition of rev up (sb/sth) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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