磨碎

磨碎	mò suì	to grind up
磨	mó	to rub / to grind / to polish / to sharpen / to wear down / to die out / to waste time / to pester / to insist
磨	mò	grindstone / to grind / to turn round
碎	suì	(transitive or intransitive) to break into pieces; to shatter; to crumble / broken; fragmentary; scattered / garrulous