Brush up on sth

Send us Fan MailFor checking the transcript: https://www.buzzsprout.com/2379282Brush up on sthmeans to improve or refresh your knowledge or skill in something that you haven't practiced in a while. Once again, it means to refresh or improve your skills or knowledge in a specific area.Examples:1- He said he’d brush up on his dancing before the wedding, but when we saw him on the dance floor, we knew he didn’t. 2- After not driving for a few years, John needed to brush up on the rules of the road before feeling confident behind the wheel again.