price indices的用法和样例：
例句
- After subtracting food and energy costs, which can vary widely each month, the Producer Price Index for Finished Goods still rose at a moderately fast clip of four-tenths of1 percent, compared with a two-tenth rises in April.
减去食物与能源的费用以后——这两项每月可能大幅变动——成品制造价格指数仍以略快的速度攀升百分零点四，相形之下，四月份仅上升零点二。 - Do you know the price index in the city?
你知道这个城市的物价指数吗？
