Each time we celebrate a festival it changes a little and in that way we keep our culture alive.
问题描述：
Each time we celebrate a festival it changes a little and in that way we keep our culture alive.
这里it changes a little在句子中做什么结构,it指代什么?该怎么翻译.
答
it是主语,change是谓语,each time we celebrate a festival是状语
我们每次庆祝节日时,都会有一些变化,通过这种方法,我们的文化保持活力.