... 之前提到过 has been mentioned before 之前提到的 Mention before 正如我之前提到 As I Mentioned Above ...
双语例句
1
I won't mentionbefore your good, not vexatious also won't bother.
我不会提及从前你的好，不会无理取闹也不会再打扰。
2
But as I've mentionbefore in my diaries, big cities have this one little problem called traffic jams. Beijing is no exception.
可是，之前都说过，大城市的毛病之一就是交通挤塞，北京也不例外。
3
Before we close today, I thought I'd mention a biological event that's a part of the transition from winter to spring, something you can go outside and watch if you have some patience.