Definition: to keep changing, especially in level or amount Level: C2
季节间的温度往往波动剧烈。
The temperature tends to ___fluctuate dramatically between seasons.
股票价格会根据全球经济新闻而波动。
Stock prices can ___fluctuate based on global economic news.
他的情绪似乎在一天中起伏不定。
His mood seemed to ___fluctuate throughout the day.
