n.椅子;教授职位;主席;
v.担任主席;主持(会议等);
例句:
The boy sprang up out of the chair as soon as he heard the doorbell ring.
那孩子一听到门铃响,就从椅子上跳起来.
He sat back in his chair and looked at me.
他靠着椅背坐着看我.
We need another chair.
我们再要一把椅子.