The third argument, rereduce, has to do with whether or not this reduce function is operating on aggregate information or the raw results from the map (the ones from the map function).

第三个参数是 rereduce，这个参数必须处理这个 reduce 函数是在汇总信息上操作还是在来自映射的原始结果（来自 map 函数的结果）上操作。

youdao

Results are displayed graphically on a map, rather than as a list of prices.

搜索结果并不是简单的陈列出价格，而是在地图上直观地显示出来。

youdao

The results are presented in some visual manner: within a table, as points on a map, as bars in a chart or graph, and so on.

结果以某种可视化的方式显示：在一个表中显示，显示为地图上的点，显示为图表中的条形，等等。

youdao

They have displayed their results on an ingenious map of the industrial landscape, in which similar products cluster tightly together and unrelated products stand apart.

ECONOMIST: Economics focus: Diversity training | The

Once the tests have been completed, the children will be able to enter the results onto an interactive map on a specially created website.

UNESCO: MEDIA SERVICES

Students will be able to register the results of their tests in an interactive on-line map.

UNESCO: World Water Assessment Programme (WWAP)