名词
中文翻译：峰谷比
同义词：
['peak-to-trough index', 'peak-to-trough ratio', 'peak-to-trough index ratio']
例句：
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1. The economic growth rate of the country has been declining in recent years.
该国近年来的经济增长率一直在下降。
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2.The company's profitability has been increasing steadily over the past few years.
该公司在过去几年里一直稳步提高盈利能力。
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3.The peak-to-trough ratio is an important indicator for evaluating the overall health of the economy.
峰谷比是评估经济整体健康状况的重要指标。