This Law states that wth every increase in consumption of a unit, your utility (satisfaction) will reach a point where it will increase at a decreasing rate and eventually start to decline.

• 这就是边际效益法则，它说明了每个人对消费一样东西的时候，它所带给个人的情况(满足感)。当它达到最高点的时候，接下来就会开始往下降。