他们在市中心买了一栋联排别墅，有三层楼和一个私人花园。

They purchased a three-story ___townhouse in the city center with a private garden.

我们刚买了套联排别墅，有三个卧室和一个屋顶露台。

We just bought a ___townhouse with three bedrooms and a rooftop terrace.