大起大落
great ups and downs;sharp rise and fall; drastic fluctuations;wild swings (in the economy)
经济～drastic upturns and downturns in economic growth/股票价格～ sharp fluctuations in the prices of shares
大起大落dà qǐ dà luò
指人在仕途上的升迁与降职幅度非常大。marked ups and downs, sharp rise and fall, sharp fluctuations