我想在去巴黎之前温习一下我的法语。

I thought I'd ___brush ___up ___on my French before going to Paris.

你可能想在考试前温习一下你的英语。

You might want to ___brush ___up ___on your English before the exam.

为了音乐会，他决定温习一下他的吉他技巧。

He decided to ___brush ___up ___on his guitar skills for the concert.