stair

She sat down on the bottom stair to tie her shoelaces before leaving the house.

(Chinese) 她坐在最下面一级台阶上系好鞋带，然后离开了房子。

The old wooden stairs creaked loudly every time someone walked up to the attic.

(Chinese) 每当有人走上阁楼时，古老的木楼梯都会发出很大的吱吱声。