duplex
noun [ C ] uk/ˈdʒuː.pleks/ us/ˈduː.pleks/ (also duplex apartment)
(ROOMS)
复式房屋，跃层套房，楼中楼
a set of rooms for living in that are on two floors of a building
(TWO HOUSES)
Australian English连体房屋，毗联式住宅
a pair of small houses on a single floor that are joined together