/rəʊˈteɪʃn ||; roˈteʃən/noun[C,U] 1 movement in circles around a central point 旋转；自转: one rotation every 24 hours 每24小时自转一次
2 happening or making things happen in a particular order 轮流；循环 · The company is chaired by all the members in rotation. 公司董事长由全体董事轮流担任。