秋風掃落葉 [ㄑㄧㄡ ㄈㄥ ㄙㄠˇ ㄌㄨㄛˋ ㄧㄝˋ; qiu1 feng1 sao3 luo4 ye4] lit. as the autumn gale sweeps away the fallen leaves (idiom); to drive out the old and make a clean sweep ◄ ►