large-scale exhibition, trade fair, or international expo

to read widely from all kinds of books; describes someone with extensive knowledge or a broad education

world's fair; universal exposition; an international exhibition designed to showcase achievements of nations in science, art, and industry

world's fair; an international exhibition designed to showcase the achievements of nations; also referred to by the short forms [[世博|世博|shi4 bo2]] or [[世博会|世博會|shi4 bo2 hui4]]

to have read extensively through history and modern times; to be widely read in both ancient and modern literature