One instance in particular left a deep impression on me and will stay in my memory forever.

有件事令我印象非常深刻，将永远留在我的记忆中。

youdao

In the last year or so, those dizzy fantasies and their sensations had stopped, cut off as abruptly as if someone had pulled a switch, only the memory of them left like markers on the surface above deep water.

NEWYORKER: Friendly Fire