1stairs [pl] a series of steps inside a building that lead from one level to another 楼梯:
a flight of stairs一段楼梯I heard somebody coming down the stairs.我听见有人下楼梯的声音。She ran up the stairs.她跑上楼梯。☞Look at downstairs and upstairs. 参看downstairs及upstairs。
Compare stair and step. Stairs or flights of stairs are usually inside buildings. Steps are usually outside buildings and made of stone or concrete. 比较stair及step。stairs或flights of stairs通常指建筑物内的楼梯或梯级。steps通常指建筑物外用石头或混凝土筑成的台阶等。 ☞picture on page C7 见C7页插图
2 [C] one of the steps in a series inside a building 梯级