I must brush up on my French before I go to Paris.
去巴黎之前,我要好好温习一下法语。
Examples from the Corpus
brush up (on) • I have already said how little I knew about cancer, and I now began to brush up on it.• For the province's futureOlympichopefuls have been brushing up on skills both on and off the sportsfields.• Public libraries frequently have computers that people can use to brush up on their skills.• The guide can be used an introduction to the hobby or as a means to brush up skills.