roadbed

英['rəudbed]美['rəudbed]

n. 路基

The steamroller leveled out the gravel roadbed and then the concrete was poured.
蒸汽压路机把石子路床压平;然后注上水泥。收藏
The steamroller leveled out the gravel roadbed and than the concrete was poured.
蒸汽辗压机先把路基的沙砾辗平，然后才倒下水泥。收藏
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;路基收藏
The earthquake made the roadbed cave in
地震后路基沉陷了。收藏

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