回炉

回炉	huí lú	to melt down / to remelt (metals) / fig. to acquire new education / to bake again
回	huí	to circle / to go back / to turn around / to answer / to return / to revolve / Hui ethnic group (Chinese Muslims) / time / classifier for acts of a play / section or chapter (of a classic book)
回	huí	to curve / to return / to revolve
回	huí	variant of 回
炉	lú	stove / furnace
炉	lú	variant of 炉