moving stair

• 活动阶梯,阶梯式自动电梯

moving stair的用法和样例：

例句

1. The restaurant door bell tinkled and a dark form staggered up the broad dimly lighted stair.
   酒店的门铃响了，一个黑影摇摇欲坠地走上那宽阔而朦胧暗淡的阶梯。
2. Undeterred by his low position in the chip counts, Peters set the pace with some aggressive and expert play that saw him moving up the ladder.
   动摇他的地位低，在晶片计数，彼得斯定下了基调与一些侵略性和发挥专家认为，看到他动了阶梯。