双层公寓用英语怎么说

双层公寓英文为 duplex apartment。

Duplex 来自拉丁语，意思是 "having two parts"，而 apartment 来自法语，意思是 "a room or suite of rooms designed as a residence and usually located in a building occupied by more than one household"。所以，双层公寓就是指有两层楼的公寓。

一些英文例句及其中文翻译如下：

We just bought a duplex apartment in the city. (我们刚在城市里买了一套双层公寓。)
The duplex apartment has a balcony on each floor. (这套双层公寓每层都有一个阳台。)
I love living in a duplex apartment because it feels like a house. (我喜欢住在双层公寓里，因为感觉像住在一栋房子里。)