Behind the high-rises lie unpaved roads.

路尚未平，高楼却已建起。

I'd say at least half, maybe more than half were unpaved roads.

至少有一半是土路。

It was unpaved road, it was very bumpy and it was about a two hour drive north of Siem Reap.

那条路是土路，道路崎岖不平，距离暹粒北部有约两个小时的车程。

" Dirt roads" are also called " unpaved roads."

“土路” 也称为“未铺砌的道路” 。

These houses were built very close to each other along unpaved roads.

这些房子沿着未铺砌的道路建造得非常近。

America has the largest road network of any country in the world with over 6.5 million kilometers of road, over 4.3 million miles of paved road and over 2.2 million miles of unpaved road.

美国拥有世界上最大的公路网，拥有650多万公里的公路，430多万英里的铺装公路和220多万英里的未铺装公路。