Grammar Note
表示“擦洗”时通常用单数：give sth a scrub；表示“灌木丛”时通常不可数。
擦洗；刷洗
先理解核心含义，再看它在真实句子里的用法。
擦洗；刷洗
an act of scrubbing; a thorough cleaning by rubbing with a brush and soap or water
I gave the bathroom floor a thorough scrub before the guests arrived.
客人到达前，我把浴室地板彻底擦洗了一遍。
灌木丛或丛林,通常以主要植物命名
A thicket or jungle, often specified by the name of the prevailing plant.
擦洗的实例
An instance of scrubbing.
由矮树或灌木组成的茂密植被。
dense vegetation consisting of stunted trees or bushes
被认为质量低劣或对人类用处不大的植被,通常生长在贫瘠或沙地上；也称为灌木丛
Vegetation judged to be of inferior quality or of little use to humans, though sometimes thick and impenetrable, growing in poor soil or in sand; also, brush.
After the barbecue, these pots need a good scrub to remove the burnt bits.
烧烤之后，这些锅需要好好刷洗一下，才能去掉烧焦的部分。
A quick scrub with soap and water should get the dirt off your hands.
用肥皂和水快速擦洗一下，应该就能把你手上的污渍洗掉。
Choose the next layer that will help you use scrub 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 scrub naturally, then get feedback on meaning, tone, grammar, and phrasing.
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表示“擦洗”时通常用单数：give sth a scrub；表示“灌木丛”时通常不可数。
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
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, WORDNET.