保持波动下降用英语怎么说

保持波动下降用英语可以表示为 “maintain a declining fluctuation” 或者 “keep a fluctuation on the decline.”

：这两个表达方式都可以用来描述一种情形或动向，表明波动在不断下降。其中，”maintain” 一个动词，意思是维持或保持，而 “declining” 一个形容词，表示 “下降的”。同样地，”keep” 一个动词，意思是保留或维护，而 “fluctuation on the decline” 一个名词短语，表示 “下降的波动”。

英文例句及其中文翻译：

e stock market has maintained a declining fluctuation for the past month. (过去一个月，股市保持了下降的波动。)
We need to keep the fluctuation on the decline in order to maintain our profitability. (我们需要保持波动下降，以维持我们的盈利能力。)
The temperature has been maintaining a declining fluctuation all week. (这一周，气温一直保持下降的波动。)
The company has been able to keep the fluctuation on the decline by implementing cost-cutting measures. (公司通过实施削减成本的措施，一直能够保持波动下降。)