名词
中文翻译：双重原则
同义词：
['dualism', 'duality principle', 'dualistic principle']
例句：
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1. The duality principle is a fundamental concept in economics.
双重原则是经济学中的一个基本概念。
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2. The duality principle suggests that there are two distinct aspects to every situation.
双重原则表明，每个情况都有两个截然不同的方面。
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3. The duality principle has been used to explain the relationship between capitalism and socialism.
双重原则被用来解释资本主义和社会主义之间的关系。