n.椅子，大学教授职位，主持会议的主席（的席位或职位），讲座。

vt.主持，使……入座，使就任要职。chair读音：英 [tʃɛə]，美 [tʃɛr]。例句： He sat penitently in his chair by the window. 他懊悔地坐在靠窗的椅子上。Bob slid from his chair and lay prone on the floor. 鲍勃从椅子上滑下来，趴在了地板上。Use your lunch hour to have a nap in your chair. 利用午饭时间坐在椅子上打个盹吧。