词典释义：
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木贼
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百洁布；精练垫
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She reached for a cloth and began scouring the countertop.
她伸手拿了一块布，开始擦厨房的操作台面。
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As a result of fluvial scouring and aggrading the riverbed, the alluvial layer is fluid-saturated porous medium.
由于河流冲刷和河床加积，沉积层多饱和多孔。
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Dogs were scouring about after the rabbit.
狗在四处追寻那只兔子。
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Mix it with Borax to make a great scouring powder.
和硼砂混合可以做成很好的洗涤粉。
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Then I begin scouring the Internet for actual jobs.
接着我上网去找一些更实际的工作。