来源：这两个表达方式都可以用来描述一种状态或趋势，表明波动在不断下降。其中，"maintain" 是一个动词，意思是维持或保持，而 "declining" 是一个形容词，表示 "下降的"。同样地，"keep" 是一个动词，意思是保留或维护，而 "fluctuation on the decline" 是一个名词短语，表示 "下降的波动"。
一些英文例句及其中文翻译：
The 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。)
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最佳回答 2023-04-18