一遍一遍地数着回忆
[yī biàn yī biàn dì shù zhe huí yì]
Translates literally to 'Counting memories over and over.' It reflects on reminiscing about past moments frequently; the netizens likely enjoy looking back at experiences they've had repeatedly - both happy times or even bittersweet recollections. Perhaps there is nostalgia involved here as they long for what once was but can now only remain in remembrance.