化腐朽為神奇 [ㄏㄨㄚˋ ㄈㄨˇ ㄒㄧㄡˇ ㄨㄟˊ ㄕㄣˊ ㄑㄧˊ; hua4 fu3 xiu3 wei2 shen2 qi2] lit. to change something rotten into something magical (idiom) ◄ ►