su·per·struc·ture /-ˌstrʌkʧɚ/
 上部構造,建築物,上層建築


 Su·per·struc·ture n.
 1. Any material structure or edifice built on something else; that which is raised on a foundation or basis; esp. Arch., all that part of a building above the basement. Also used figuratively.
    You have added to your natural endowments the superstructure of study.   --Dryden.
 2. Railway Engin. The sleepers, and fastenings, in distinction from the roadbed.

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 superstructure
      n : structure consisting of the part of a ship above the main
          deck