roll.way

n.（名詞）
A surface along which cylindrical objects or objects on rollers may be moved, especially a naturally or artificially inclined surface used by lumberjacks to slide logs into a waterway for transport.
滾木臺(tái)：一種沿表面可移動(dòng)圓筒狀或裝有小腳輪的物體的平臺(tái)，尤指伐木工用的可把原木滑滾到水道上以便于水路運(yùn)輸?shù)奶烊换蛉斯て脚_(tái)