需要指没有得到某些基本满足的感受状态。 Need is a state of deprivation of some basic satisfaction 欲望—指想得到这些基本满足的具体满足物 的愿望。 Wants are desires for specific satisfiers of needs 需求—指对有能力购买并且愿意购买的某个 具体产品的欲望。 Demands are wants for special products that are backed by an ability and willingness to buy them需要——指没有得到某些基本满足的感受状态。 Need is a state of deprivation of some basic satisfaction. 欲望——指想得到这些基本满足的具体满足物 的愿望。 Wants are desires for specific satisfiers of needs. 需求——指对有能力购买并且愿意购买的某个 具体 产品的欲望。 Demands are wants for special products that are backed by an ability and willingness to buy them