ladder wall
短语词形变化
ladder walls
复数
ladder walls
释义与例句
n.
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1.
A type of wall obstacle in obstacle course racing composed of a vertical wall of crossbeams with space in between the beams, where competitors must climb up the wall, go over, and climb back down.
词源
From ladder + wall from the construction of the wall akin to a ladder and the action needed to pass the obstacle, climbing it like a ladder.
来源:wiktionary