stair

名词

1. 1

   楼梯常用复数

   She ran up the stairs to answer the phone.

   她跑上楼梯去接电话。

2. 2

   梯级、阶梯

   The bottom stair creaks whenever someone steps on it.

   每次有人踩到最下面那一阶，就会发出嘎嘎声。