琢磨

琢磨	zhuó mó	to carve and polish (jade) / to polish and refine a literary work
琢磨	zuó mo	to ponder / to mull over / to think through / Taiwan pr. [zhuo2 mo2]
琢	zhuó	to cut (gems)
琢	zuó	used in 琢磨 / Taiwan pr. [zhuo2]
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