A black bituminous material used for paving roads or other areas; usually spread over crushed rock.

用来铺块石面路或其他区域的黑色含沥青的材料；通常覆盖在压碎的石头上。

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For instance, at George Tech they're trying to turn garbage into lava rock so it can be used for everything from paving roads to construction material for buildings.

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The European Union recently approved plans for Northern Rock to be split into a "good" and "bad" bank - paving the way for a partial sale.

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