A garden on the roof of a building, especially one found in an urban setting.屋顶花园：尤指在城市里看到的建筑物顶部的花园
The roof or top floor of a building designed for use by the public that often contains outdoor seating or dining facilities.屋顶花园餐馆：为供大众使用而设计的常带有户外座椅或饮食设备的建筑物屋顶或顶层