动词短语
中文翻译：复习
同义词：
['refresh', 'improve', 'enhance例句：1. I need to brush up on my French before the conference.（在会议前，我需要复习我的法语。）']
例句：
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1. I need to brush up on my French before the conference.
在会议前，我需要复习我的法语。
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2. She brushed up on her knowledge of history by reading books.
她通过阅读书籍来提高对历史的知识。
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3. The teacher suggested that we should brush up on our skills in public speaking.
老师建议我们应该提高我们的公共演讲技能。