stair

n

• ① [用复数形;【美】偶作a stairs]阶梯,楼梯(★指建筑物的楼(floor)与楼,或驻脚台(landing)与驻脚台之间的一段连续的梯级(flight of steps))
  • a flight of stairs一段楼梯
  • climb [descend] a narrow stairs【美】爬上[走下]狭窄的楼梯
  • go [walk] up [down] (the) stairs上[下]楼
  • He ran up [down] the stairs.他跑上[下]楼梯。

• ② (楼梯的)一级
  • He sat down on the top [bottom] stair.他坐在(楼梯的)最上面[最下面]一级。