回忆的回忆兜是回忆曾经的曾经兜是曾经
[huí yì de huí yì dōu shì huí yì céng jīng de céng jīng dōu shì céng jīng]
This is a rather poetic and repetitive expression. It emphasizes the concept of reminiscing and how everything seems like it belongs to the past, indicating nostalgia and deep reflections on bygone times.