A city is the center of different key elements in a regional scope, and is the senior settlement that is different from the village in its history.

城市是区域范围内各种要素的中心，是历史形成的一种有别于乡村的高级聚落。

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Whereas the immediate focus of the Centre will be sub-regional and regional, the scope will ultimately be international.

UNESCO: MEDIA SERVICES

Another key pillars of the programme are the water-related Centres under the auspices of UNESCO, called Category II, which deal with specific themes having regional and international scope, and the UNESCO Chairs devoted to specific themes involving water resources at university level.

UNESCO: International Hydrological Programme (IHP)

But the actual effect, according to Glenn Pascall, an economist, has been to enfeeble King County, the only body in the greater Seattle area with the geographic scope to deal effectively with transport and other regional issues.

ECONOMIST: Cities and growth