[mass noun] the action of rubbing something
擦,摩擦;擦干;擦净;擦亮;擦痛
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dab at the stain — vigorous rubbing could damage the carpet .轻擦污迹处——用力擦会损坏地毯。
an impression of a design on brass or stone, made by rubbing on paper laid over it with coloured wax, pencil, chalk, etc.
摹拓,拓印。