Earth road Unsurfaced road made entirely out of earth.

完全用土建成、未铺路面的道路。

youdao

Initial reports say the driver who died in the accident lost control of the double-decker bus in a narrow and unsurfaced patch of road.

初步报告称事故中丧生的司机在一段狭窄又不平的道路上失去对这辆双层汽车的控制。

youdao

There are some 117km of unsurfaced road on the island of which 24km are upland trails.

BBC: Motorbikes 'obliterating' tracks says environmentalist

An hour north of Hestheimar farm, the tarmac gives way to an unsurfaced road that winds up into the mountains.

BBC: Iceland on horseback

In March, the authority announced it would monitor 27 unsurfaced roads in the national park for use by 4x4s and off-road bikes.

BBC: Anti-vehicle campaigners meet bikers