"previously on lost"的含义是什么?《迷失》每集中都要出现的一句话,但它到底有什么深刻的含义呢?

previously on lost的含义是什么?《迷失》每集中都要出现的一句话,但它到底有什么深刻的含义呢? previously on prison break 合乎语法吗? previously神马 Previously on XX 美剧常以此开头,可Previously 不是副词吗?这句话有语病吧?谁能帮我分析一下句子结构啊? LOST yourself ,lost your balance on the tightrope 美剧里开头的那句“亏b思类安 last”是什么意思呀查查我看lost的时候每集都来句“亏b思类安 last” 和 previously的发音差好大呀 Lost on the island of the spice 美剧的一开始都会说previously on XXX 的,可是previously是一个副词,请问该怎么理解这里的previously?大家都可以说说~一起讨论讨论~我知道是“前情提要”,就是不知道该怎么理解这个previously的词性? 求解释这句话中的定语从句成分!Recently a number of cases have been reported of young children duplicating a violent act previously seen on TV .previously seen on TV .没省略的时候是that was previously seen on TV 如果是的话不 lost lost lost lost lost lost lost lost. lost