地铁站工作人员也表示，自动扶梯每一层的高度为21厘米，比公共阶梯要高6厘米。
Station staff also said the escalator step is 21 centimeters in height, six centimeters higher than the height of the public stairs.
地铁站工作人员也表示，自动扶梯每一层的高度为21厘米，比公共阶梯要高6厘米。
Station staff also said the escalator step is 21 centimeters in height, six centimeters higher than the height of the public stairs.
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