在所有大楼房里都有电梯及自动楼梯，人们都不再行走了。

There were lifts and escalators in all large buildings to prevent people from walking.

高速电梯、自动楼梯和滚动的人行道可将人们迅速地从一个层面输送到另一个层面。

High speed elevators, escalators, and moving sidewalks would convey people swiftly between one level and another.