名词短语
中文翻译：累积下降
同义词：
['cumulative decline', "cumulative decrease例句：1. The company's profits have been cumulating downward since the beginning of the year.（自年初以来，这家公司的利润一直在累积下降。）"]
例句：
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1. The company's profits have been cumulating downward since the beginning of the year.
自年初以来，这家公司的利润一直在累积下降。
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2. The population has been cumulating downward for several generations.
几代人以来，人口一直在累积下降。
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3.The economy is experiencing a cumulating downward trend in its growth rate.
经济正在经历其增长率的累积下降趋势。