A moment later, he steps onto a moving stairway that takes him rapidly up to the street level.

不一会儿，他踏上了自动扶梯。自动扶梯载着他很快地升到了街面。

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Stairway (staircase) : Series or flight of steps that provides a means of moving from one level to another.

楼梯(阶梯)：两层楼面之间的一系列踏阶，是从一个楼层到另一楼层的信道。

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