In those days, $20 was not a sum to be sniffed at.

那时候，20元不能不当回事。

《牛津词典》

In those days, $20 was not a sum to be sneezed at.

那时候，20元可不能不当回事。

《牛津词典》

To many people in many places, it is a princely sum to live on.

对于很多地方的很多人来说，这笔钱可以过上贵族般的生活。

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That sum pales in comparison to the planned $20 billion fund to compensate victims of the disaster.

VOA: standard.2010.06.18

And against that we would then have to subtract the sum total of the negative experiences, all the failures and deceptions or what have you.

与此相对，我们必须,减掉消极经历的总和，所有的失败和受到的欺骗。

耶鲁公开课 - 死亡课程节选

Love and loyalty are mere abstractions, however, without some sort of vehicle for their expression; and the vehicle for their expression then is God's Torah, the sum total of God's teachings and instructions and laws and guidelines, which are supposed to ensure long life and prosperity in the land.

爱和忠诚都是一种无法表述的吸引力,于是律法卷就成了表述它们的方式,即对上帝的教诲，指导，律法和方针的,汇总，它将保证这片土地长久的,繁荣。

耶鲁公开课 - 旧约导论课程节选

In theory, you can make or spend a small sum to accomplish your goal.

FORBES: Zero Dollar Fix

Sorrell does not expect this sum to contract this year in a recessionary bust.

FORBES: Magazine Article

In an economy, the income effects from a transfer payment always sum to zero.

WSJ: Arthur B. Laffer: Unemployment Benefits Aren't Stimulus