2、释义：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。
3、例句：1.he sat penitently in his chair by the window.他懊悔地坐在靠窗的椅子上。2.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。3.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。