[] to change frequently in size, amount, level, etc., especially from one extreme to another（规模、数量、水平等）波动；（在…之间）起伏不定◆The price of cocoa can fluctuate wildly on world markets.可可价格可以在世界市场上出现大幅波动。◆Workers can move between factories as the workload fluctuates.由于工作量的改变，工人会在工厂间流动。◆fluctuating prices波动的价格⨁to fluctuate dramatically / widely / wildly急剧／广泛／大幅地波动