fluctuation of temperature

例句：

1. 1. The stock price has shown a significant fluctuation in the past year.
   过去一年，股票价格出现了显著的波动。
2. 2.The temperature fluctuated between 20 and 30 degrees Celsius throughout the day.
   一天中，温度在20到30摄氏度之间波动。
3. 3. The company's revenue fluctuated significantly due to changes in market demand.
   由于市场需求的变化，公司的营收波动较大。