What do you mean, Laojing Laojing Laojing?

This sentence comes from Du Fu's poem "Spring Hope" in the Tang Dynasty: "The scenery has been familiar, and the personnel is still a word. . "It means that the scenery I used to be familiar with has changed now, familiar people and things have become poems, and the passage of time has brought about various changes. Among them, "Lao Zeng Yan" refers to the once familiar scenery, and "Ceng Li and Yan Yan" refers to the once familiar people and things.