roadbed

汉语翻译

n. 路基

英语解释：

名词 roadbed:

1. a bed supporting a road

例句：

1. A foundation of crushed rock or a similar substance for a road or railroad; a roadbed.
   路基碎石或类似物质做的道路或铁路的基础; 路基

详细解释：

road.bed

n.（名词）


The foundation upon which the ties, rails, and ballast of a railroad are laid.
路基：其上可铺铁道的枕木、铁轨和道碴的地基
A layer of ballast directly under the ties.
道碴：直接铺在枕木下的石碴
The foundation and surface of a road.
公路地基和公路路面