marginal preoccupation 如题

marginal investor 什么是Marginal 什么是Marginal 什么是Marginal marginal benefits,revenue,value的区别marginal benefits,marginal revenue,marginal value有啥区别!着急! marginal revenue function是什么意思 marginal cost pricing marginal的意思 marginal candidates是什么意思 marginal preoccupation 如题 marginal decrease怎么翻译 full marginal cost是什么意思? marginal perfusion 什么意思 marginal valuation是什么? marginal revenue与marginal revenue product 区别经济方面 marginal-cost-based 求翻译 marginal willing of payment是什么意思 marginal-cost-based ,求翻译,真心求