ladder n.An often portable structure consisting of two long sides crossed by parallel rungs, used to climb up and down. 梯子一种通常是可移动的结构物,由长长的两边和两边平行的梯级连接组成,用于爬上爬下Something that resembles this device, especially a run in a stocking. 抽丝一些与这种装置相似的东西,尤指长筒袜的抽丝A means of ascent and descent:上或下的方式:ascending the social ladder.登上社会的阶梯A series of ranked stages or levels:一系列等级或水平:high on the executive ladder.处于行政的最高层ladder v.intr. lad.dered; lad.der.ing; lad.ders;To run, as a stocking does.象长筒袜一样抽丝stairOftenstairs常作stairsA series or flight of steps; a staircase.一段或一阶楼梯;楼梯One of a flight of steps.一段或一阶台阶