patch ‧ work /ˈpætʃwɜːk $ -wɜːrk/ BrE AmE noun
1 . [uncountable] a type of sewing in which many coloured squares of cloth are stitched together to make one large piece:
a patchwork quilt
2 . [singular] something that is made up of a lot of different things
patchwork of
a patchwork of woods and fields, typical of the English countryside
The area was a patchwork of local industries.