名词短语
中文翻译：收益理论
同义词：
['returns theory', 'profit theory']
例句：
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1.The economist used the theory of returns to explain why prices adjust so quickly.
经济学家使用收益理论来解释为什么价格调整得如此迅速。
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2.The firm's decision to invest in new technology was based on the theory of returns.
该公司决定投资新技术是基于收益理论。
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3. The investment in renewable energy sources is a theory of returns that has been proven to be effective.
对可再生能源的投资是一条收益理论，已被证明是有效的。