台阶的解释 (1) [flight of steps leading up to a house] (2) 供人上下行走的建筑物,因一阶一阶的,故称为台阶 (3) 在土山坡、岩石或冰坡上凿出的踏脚点 (4) [chance to extricate oneself from an awkward position]∶比喻...