rooftop

名词 rooftop:

1. the top of a (usually flat) roof

1. The patter of rain on the rooftops.
   屋顶上雨点的敲打声
2. Multi-colored flags were flying over the rooftop.
   五彩缤纷的旗子在屋顶上飘扬。

roof.top

n.（名词）
The outer surface of a roof.
屋顶的外表面
n.attributive.（定语名词）
Often used to modify another noun:
常用来修饰另一名词：
例句：
rooftop gardens; rooftop tiles.
屋顶花园；屋顶瓦