The second, embedded combination of sum and EXTRACT function calculates the lower boundary, which is based on the sum of values in preceding slices, represented in the map rule as InSliceIndex - 1.

嵌套的第二个SUM和EXTRACT函数组合计算下限，下限基于前面的片中的值的总数，在映射规则中表示为InSlice Index - 1。

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He found those with a lower base level of the hormone tended to prefer immediate payment, even when the sum in question was piffling compared with the promised future compensation.

他发现那些具有更低水平糖皮质激素的人倾向于选择即时报酬，即使即时报酬数目和未来承诺的补偿相比微不足道，结果也是这样。

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The sum set aside is 20% lower than the equivalent figure for the first six months of 2007.

所拨出的资金总数与2007年的头六个月相比减少了20%。

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The DOJ agreed to the lower sum because the company cooperated with the investigation, remediated its compliance systems and committed to more reform.

FORBES: Magazine Article

Then, if such a family's tax return suggests its income is substantially lower than that sum the authorities might get suspicious.

BBC: Italian tax dodgers uncovered by the Redditometro

Shareholders of the UK's Vodafone are banging on the doors, too, asking why the company's stock is trading an estimated 30 percent lower than the sum of its parts -- and they want something done about it.

ENGADGET: Vodafone facing more pressure to shed Verizon, other key assets