Passche price index

例句：

1. 1.The price index has been steadily increasing since the beginning of the year.
   自年初以来，价格指数一直在稳步上升。
2. 2.The company's price index is closely monitored by investors.
   投资者密切关注该公司的价格指数。
3. 3. The price index is a crucial indicator of inflation.
   价格指数是衡量通货膨胀的关键指标。