confine/confined

confine /kənˈfain/ vt. 限制，使局限：confine oneself in a cottage 把自己关在小屋里；confine oneself strictly to the subject 紧扣话题；be confined within very narrow limits 被限制在极小的范围内 I confine my attention only to the fact. 我只注重事实。

confined adj. （空间）狭窄的，局促的；有限的：be confined to one's bed卧病在床It is hard to work efficiently in such a confined space.在这样狭小的空间里工作很难提高效率。