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