您要找的是不是：
道路建筑；筑路机
?筑路者
... roadbed material 路基材料 roadbuilder 筑路者 roadbed construction 路基工程 ...
自动筑路机
"At that moment I felt that taller than the mountain, " said the former hotelier, roadbuilder and apple farmer, who now has the greatest of stories to tell his 17 grandchildren and five great grandchildren.
CNN: Oldest Everest climber finally gets recognition
roadbuilder:
road +? builder
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