Gb	Eng
沥青常用于铺路。	Asphalt is used for making road surfaces.
沥青混泥土碎石或沙子与沥青的混合物，用于铺路或封层顶	Mixed asphalt and crushed stone gravel or sand, used for paving or roofing.
工人们把沥青和沙子、石块混合在一起。	The workers mixed the asphalt with sand and gravel together.