分类：教育/科学-学习帮助
问题：remaintobedone是什么意思?remain还有什么用法? 
回答：不及物动词  vi. 剩下；余留下来    stay after a part has gone   · The town was destroyed in the war,but the library remained.   城市在战争中毁了，但是图书馆还在。  · A few flowers still remained on the tree.   树上还剩几朵花。  · A lot remains to be done.   还有许多事情要做。  · There remained just a little money, what was to be done?   只剩一点钱了，怎么办呢？  · You may have the remaining ones.   剩下的你都可以拿去。      不及物动词  vi. （人）逗留；留下    stay or continue in the same place   · We all went to the theatre except John; he remained at home.   除了约翰，我们都去看戏了，他留在家里。  · He remained at home and attended to the business.   他留在家里照料生意。  · They did not remain long in that county.   他们在那个县没待太久。      不及物动词  vi. 保持；继续是    stay or continue in the same way; not change   · We must always remain modest and prudent.   我们要永远保持谦虚谨慎。  · I asked her a question but she remained silent.   我问了她一个问题，但她仍保持沉默。  · His knowledge of French remained very weak.   他的水平仍然很差。  · She remained unmoved.   她仍然纹丝未动。  · remain behind   留下来  · He offered to remain behind to help me.   他提出留下来帮助我。  · remain in   呆在屋子里；留在家里；不外出  · Generally we remain in on Sunday evening.   通常我们星期日晚上在家。  · My father remained in because of the bad weather.   我父亲因天气不好没有出去。  · remain up   过就寝时间还不睡  · He remained up because he hadn't finished his work.   他一直还没有睡，因为他的工作没有完成。  · remain with   属于；归于  · Victory remains with us.   胜利属于我们。  · Memories of happy days remain with us.   快乐时光的记忆尚在。