Basalt is needed to surface a road or to build a break water.

需要用玄武岩来铺设路面或修防洪堤。

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Its passenger compartment spans the width of two traffic lanes and sits high above the road surface, on a pair of fencelike stilts that leave the road clear for ordinary cars to pass underneath.

立体快巴的乘客们相隔的跨度为两条车道的宽度，并高坐于道路表面上方高耸的支架栏杆上，这使得普通的汽车可以在下边畅通无阻。

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A thin patch of asphalt on top of the existing road surface near the lookout's former location was visible last night, but its purpose was unclear.

在板房位置附近马路上昨晚人们可看到有一薄层沥青。这种铺路面事情的目的是不清楚的。

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Potholes are formed by water seeping through cracks in the asphalt surface of a road.

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"For example, even on a road surface with minor ridges or furrows, the driver no longer has to grip the steering wheel tightly and make detailed adjustments, so travelling on the intended path becomes easier, " it said in a statement.

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In Cornwall, the A39 at Perranarworthal is closed in both directions because of flooding and a poor road surface.

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