The two children enjoyed travelling on the tube railways and going down the moving stairs which lead to the platforms.

两个孩子喜欢乘坐地铁，让活动电梯把自己送到站台上去。

youdao

They were all moving toward him down the stairs.

他们都正朝着他走下楼梯。

《柯林斯英汉双解大词典》

We walk through darkness, up the stairs. Heisn't moving very fast, so I climb slowly with him.

我们在黑暗中走上楼。他走的不快，我只能慢慢地跟着他。

youdao

Clearly, there was no need to make this a lighthouse, but even before ascending to Columbia, I am climbing stairs, moving upwards.

FORBES: BioShock Infinite Preview - Oh, Amber Waves of Pain