n.壁板;墙板;铁路旁轨;侧线
动词side的现在分词形式.
The train has shunted to a siding. 这列火车已转至旁轨。
A train of antiquated coaches was waiting for us at the siding. 一列陈旧的火车在侧线上等着我们。
vi.沉没;平息;下陷
vi.居住;属于;存在
adj.主持会议的;主持的;首席的
动词preside的现在分词形式.