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English definition of “brush up (on) sth”

brush up (on) sth

phrasal verb with brush
 
 
/brʌʃ/ verb [T]
to improve your skills in something: I'm trying to brush up on my French before I go to Paris.Making things betterBecoming better
(Definition of brush up (on) sth from the Cambridge Learners Dictionary © Cambridge University Press)
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