磨砂

to scrub with an abrasive / to sand / frosted (e.g. glass)

to rub / to grind / to polish / to sharpen / to wear down / to die out / to waste time / to pester / to insist

grindstone / to grind / to turn round

sand / gravel / granule / variant of 沙[sha1]

sander / sanding machine

facial scrub