The total stock, or "supply," or quantity of money in any area or society at any given time is simply the sum total of all the ounces of gold, or units of money, in that particular society or region.

在一个特定地区特定时间里，货币的存量、“供应量”、或总量简单的说就是这个特定地区或社会里黄金或货币的数量总和。

youdao

The area of this region is the sum of the areas of all the little pieces.

这个区域的面积是所有小区域面积的总和。

youdao

The sum of this figure must be the area of a base.

这些东西的和必须是底面的面积。

youdao

The total sum of these individual areas thus represents the total area under the curve.

FORBES: Apparently, Calculus Was Invented In 1994

Other factors also exaggerated the income increases in the two months, including lump-sum benefit payments handed out in December, and the loss of income for many in the New York area during October because of disruption from Storm Sandy.

BBC: US personal incomes jump ahead of New Year tax rise

The euro area also has its temporary rescue fund, which will lend the Spanish government the initial sum of money for the banks.

ECONOMIST: Spain and the markets