While national policy change sets the stage, responsibility for the details of implementation typically falls to officials at the state, province, county, and district levels.

国家政策改变定出大范围，执行细节就要由国家、省、县、区的官员负责。

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Dayu County: Ah Mountain Falls, located at the northeast corner of Dayu County, elevation 906 meters.

大余县：丫山瀑布，位于大余县城东北角，海拔906米。

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On the entire Chongqing area, it is a specifically model of "the big city" and "aboard county", the city is relatively developed, and the countryside falls behind especially.

就整个重庆地区来说，它是一个典型“大城市”加“大农村”地区，城市经济相对发达，而广大农村的经济状况则较为落后。

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The second-richest county in the nation is Falls Church City, Va.

FORBES: America's Richest Counties

Cyril Falls, 53, who is a teacher at Bangor Academy, County Down, said he thought it was OK to throw the apple core because it is biodegradable.

BBC: Apple core litter fine angers County Down driver

The only way to answer the questions about why crime falls, he says, would be to build a wall around each county in the UK, and then change the conditions to establish the influencing factors.

BBC: What's the price of DVD players got to do with crime?