效用是一个主观的概念，涉及每一个人对于自身满足感和幸福的主观判断。
Utility is a subjective concept, covering everyone's subjective judgement on their sense of satisfaction and happiness.
效用是一个主观的概念，涉及每一个人对于自身满足感和幸福的主观判断。
Utility is a subjective concept, covering everyone's subjective judgement on their sense of satisfaction and happiness.
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