It's from "Huanxisha, a new song and a glass of wine" by Yan Shu in the Song Dynasty.
A new song and a glass of wine, the weather was old last year. When will the sunset return?
I can't help it, but I feel familiar with Yan's return. Small garden fragrant path wandering alone.
Translation
Listen to a new song and drink a glass of wine, or is it the pavilion of the old weather last year? When will the sunset come back?
I can't help it when the flowers fall. The returning swallows seem to know each other, wandering alone on the flower path in the small garden.