| 摘要 |
A multi-story building structure includes at least one pair of levels. Each pair of levels includes one sleeping level, one living level and one public corridor on the living level. The levels include duplex apartments with at least one room on the sleeping level and at least one room on the living level of a respective pair of levels. An elevator system includes two elevators. Each of the elevators has a respective stop disposed at each one of the public corridors and each of the elevators skips the sleeping levels.
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