因此，有必要对大学生德育过程边际效应递减的成因及解决对策进行尝试分析。
Therefore, it is necessary to analyze the causes and countermeasures toward the decreased edge effect of moral education on college students.
经济学中有个概念叫“边际效应”，是指消费者在逐次增加1个单位消费品的时候，带来的单位效用是逐渐递减的。
There is a concept to cry in economics "limit effect", be when showing consumer increases an unit consumable in successive, brought unit effectiveness decreases successively gradually.
经济学中有个概念叫“边际效应”，是指消费者在逐次增加1个单位消费品的时候，带来的单位效用是逐渐递减的。
There is a concept to cry in economics "limit effect", be when showing consumer increases an unit consumable in successive, brought unit effectiveness decreases successively gradually.
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