The service, free of charge during the Olympics, covers the Second and Third ring roads, CBD, Financial Street, and Zhongguancun.

此次信号覆盖范围包括二环、三环、CBD、金融街、中关村等地区。奥运期间此服务免费。

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Since 1998, as one of three policy financial institutions in China, CBD has been beginning to transform from policy finance to developing finance.

从1998始，作为我国三大政策性金融机构之一的国家开发银行，开启了由政策性银行向开发性银行的转变。

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Urban core is the historical central area of a city. It is a different concept and range than that of old city, urban central area, CBD, and central financial district.

城市核心是城市的历史性中心区，与旧城、城市中心区、中央商务区、中央金融区有着不同的概念和范围。

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