拿起计算器，你会发现，40多年来，每月两次外出吃晚餐，每次花费40美元，总计50万美元。

Grab a calculator and you'll discover that, over 40 years going out to dinner twice a month at $40 each time amounts to half a million.

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使用经过修改的切片器成员集执行报告时，该输出同样包含Canada和United States合并(总计)收入。

When the report is executed with the modified slicer member set, the output again contains the combined (total) revenue for Canada and United States.

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reduce函数将对计数器(只是一些值为1的整数)进行总计。因此，提供给我的是在目标地震文件中某一个日期出现的次数。

My reduce function will then sum up the counters (which are just integers with the value of 1), thus providing me with the number of times a date occurs in a target earthquake file.

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