What does "decline, decline, Hu Bugui" mean?

It is a poem in Poetry Style Decline: "Decline, decline! Hu Bugui? Why is Hu Weiwei exposed because of Wei Jun? Fade, fade! Hu Bugui? Wei Jun's bow, Hu Weizhi is in the mud? " This poem describes the family's longing to return to their relatives who served abroad. At the same time, it also shows the pain of recruiting husbands and opposing corvee. The poem means it's getting dark, why not go back? "Yes" is a modal particle and has no practical significance. "Wei" means dusk, which literally means it's getting dark.