1
brush up + something
可分离，例如 brush my shoes up。
I need to brush up my shoes before the party.
我需要擦亮我的鞋子再去派对。
复习，提高
brushes up — third person singular of brush up
先理解核心含义，再看它在真实句子里的用法。
复习，提高
to improve or refresh one's knowledge or skill in something
I need to brush up my shoes before the party.
我需要擦亮我的鞋子再去派对。
Prepare the learner guide for this word
可生成：动词变形 Verb forms。只有点击后才会开始生成。
用刷子涂漆或清洁、擦亮
To paint, or make clean or bright with a brush.
复习；提高已有但生疏或不完善的技能
To review; to improve an existing but rusty or underdeveloped skill.
I need to brush up on my Spanish before the trip.
在旅行前我需要复习一下我的西班牙语。
She brushed up the dusty old painting to reveal its true colors.
她把那幅布满灰尘的旧画刷干净，露出了原本的色彩。
The course helped him brush up his presentation skills for work.
这门课程帮助他提高了工作所需的演示技巧。
可分离，例如 brush my shoes up。
I need to brush up my shoes before the party.
我需要擦亮我的鞋子再去派对。
不可分离，on 不能省略或移开。
She brushed up on her Spanish before the trip.
她在旅行前复习了西班牙语。
通常指梳洗打扮，也可指复习功课，但后者常用 brush up on。
Give me a minute to brush up before dinner.
给我一点时间在晚饭前梳洗一下。
Not this
I need to brush up my English.
Use this
I need to brush up on my English.
在表示'复习、提高'时，brush up 后需要加介词 on，而中文'复习'是及物动词，学习者容易遗漏介词。
Not this
She brushed up on her shoes before the party.
Use this
She brushed up her shoes before the party.
在表示'刷干净、擦亮'时，brush up 是及物动词短语，直接接宾语，不需要 on。学习者可能将'复习'的用法错误地推广到'清洁'的用法中。
Choose the next layer that will help you use brushes up with more confidence.
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use brushes up naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.