分类：教育/科学-外语学习
问题：It'shightime是什么意思 
回答：It's high time是虚拟语气。
 It is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。
　 It is time that the children went to bed.
　 It is high time that the children should go to bed.