纸伞挽旧人老酒挽旧友
[zhĭ săn wăn jiù rén lăo jiŭ wăn jiù yŏu]
The literal translation is 'Paper umbrella retains old people, aged liquor retains old friends,' symbolizing nostalgic ties with past acquaintances. This conveys a longing for the past and cherishing longtime relationships despite the passage of time.