it'been worth it中been的是什么用法?请帮忙分析一下这句话的语法

it'been worth it中been的是什么用法?请帮忙分析一下这句话的语法 It's been worth it讲解语法和翻译 Was it worth it? It isn't worth it 中为什么后面要加it?而不是It isn't worth it is not worth anything中worth是什么词性 It was worth it 是什么意思? was it worth it 歌词 is it worth it though... Worth It All 歌词 it is worth worth it or not It wasn't worth “It wasn't worth it” 【It's worth every penny of it!】中第二个it指的是什么? 英翻译中 Everything worth doing is worth time and effort to do it well. Many foreigners who have been to Shanghai Museum think that it is _____.A.very worth visitingB.well worth visitingC.worth to be visitedD.worthy being visited It is worth reminding ourselves that this has not always been the case in America I just hope that all this time apart has been worth it帮忙翻译下, it's worth remebering而不是it's worth being remeberedwhy?