回炉
to melt down; to remelt (metals); fig. to acquire new education; to bake again
回禄
traditional Fire God; destruction by fire
回路
to return; circuit (e.g. electric); loop
回禄之灾
to have one's house burned down; fire disaster
峰回路转
the mountain road twists around each new peak (idiom); (of a mountain road) twisting and turning; fig. an opportunity has come unexpectedly; things have taken a new turn