生活费指数指各邮政区域间生活费用的对照，100为平均数，200指平均数的两倍，50为平均数的一半，以此类推。
The cost of living index compares cost of living among Zips with "100" being average, 200 being twice the average, and 50 being half the average and so on.
各个月份的数、季度平均数、半年平均数以及年度平均数大概应该是接近。
Hopefully the monthly number, the quarterly average, the six-month average, and the annual average are in the same ballpark.
通用汽车的破产导致其被道琼斯工业平均指数除名，道琼斯工业平均指数由30只股票价格的加权平均数构成。
GM's bankruptcy caused it to be removed from the Dow Jones Industrial average, a weighted average of 30 stocks.
通用汽车的破产导致其被道琼斯工业平均指数除名，道琼斯工业平均指数由30只股票价格的加权平均数构成。
GM's bankruptcy caused it to be removed from the Dow Jones Industrial average, a weighted average of 30 stocks.
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