There have been a couple where there's been 请翻译下,并且分下下语法

There have been a couple where there's been,really,at the end of the day,no idea what the product was.
一天都结束了,还是想不起来在那里的那几个是什么产品.
where引导的定从,really强调后面的no idea,插入语 at the end of the day是时间状语从句,There be 结构表示“某处有某物”,have been 是现在完成时表“a couple 一直处于某种状态”,处于where there’s been.