我国古代建筑中的廊庑、副阶比较常见，它虽然不是主要的单体建筑，但在某种场合下又不可少，成为一种较为特殊的建筑。
Corridor and assistant stairs of China ancient buildings are fairly common , they are not main single building , but they are indispensable in an occasion , they are a kind of special buildings .
副阶