Marginal revenue is the change in total revenue from an additional unit sold.

边际收益是增加一个单位销售量 所引起的总收益变化。

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In order to sell an additional unit of output the firm must lower the price of all units sold (not just the marginal one).

为了多销售一单位产品，企业必须将所有出售产品的价格降低，而不仅仅是最后一单位产品。

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Because it takes almost three times as much capital to produce an additional unit of GDP in Japan as in the us, Japanese returns on capital must be much lower, probably less than half.

由于日本每增产一个GDP单位所需的资本几乎为美国的三倍，日本的资本回报率显然低得多，可能还不到美国的一半。

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It tells you that when you get more and more of something, each additional unit has less value than the one that came before it.

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Due to the permanent gains in worker productivity a firm will likely require fewer employees to support an additional unit of revenue growth than it had in the past.

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An additional lamp unit in each camera ensures that the lighting is right, whatever the situation.

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