duplexes
n.
连栋式的两栋住宅( duplex的名词复数 );
联式房屋;
占两层楼的公寓套房;
复式住宅;
例句:
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The whole floor Or rather two floors these penthouses are duplexes.
来自THETIMES
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But in return for some hard work, you can stay in one of two unoccupied oceanfront duplexes built by the Coast Guard.
来自WSJ