brush up例句

I really need to brush up on my English.
我确实需要提高我的英语水平.

When traveling, it's important to brush up your ability to relay information.
旅行时, 重要的是要梳理你的能力,以传递信息.

Tony practiced a lot in order to brush up on his technology.
托尼不断实践以提高自己的技术.