a structure that is built on top of something, for example the upper parts of a ship or the part of a building above the ground compare substructureTopics Buildingsc2(船舶的)上層建築,船樓;(建築物的)上部結構 - (formal)
the systems and beliefs in a society that have developed from more simple ones (社會的)上層建築 the relationship between the economic base of society and the political superstructure of power 社會的經濟基礎和權力的政治上層建築之間的關系