Law enforcers on the west coastof the US and in the middle states straddled by the foothills of the Appalachian mountains are reporting a common trend.
在美国西海岸和中部位于阿巴拉契亚山脚下的几个州的执法人员报告了这一趋势。
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The trend will be reinforced by the addition of eastern Africa to the global fibre-optic system in 2009-10 and the opening of new links up the west coast.
Both changes reflect the greenhouse gas from the coast to inland, with the altitude increase concentrations of greenhouse gases over a linear trend, but the rate of increase is growing;