(literary) they

spend, pass (time); have (a holiday) / do something too much, carry something too far

pleasant, delightful, fun, enjoyable

happily

delighting themselves together / a man and a woman sleeping in the same bed / Short for 合歓木.

to delight each other together / to sleep in the same bed (of a man and a woman)

silk tree (Albizia spp.) / especially, Persian silk tree (Albizia julibrissin)

silk tree (Albizia spp.) / especially, Persian silk tree (Albizia julibrissin)

those (referring to things distant from the speaker)