A road may have a gravel shoulder, its edge may be covered with sand or trash or the pavement may be broken.

一条道路可能会有一碎石路肩，路边可能会铺有一些砂石垃圾或烂掉的路面等。

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Tar and gravel have been used to resurface the eastbound lane and, in places, the shoulder.

东去的小路和一些地方的路肩都用柏油和沙砾重新铺过。

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Days ago bused-in prison inmates worked shoulder to shoulder with the National Guard and local volunteers to build a makeshift floodwall of sand and gravel.

NPR: More Rain Expected For Already Swollen Rivers