roofing

1. N-UNCOUNT Roofing is material used for making or covering roofs. 屋頂材料[oft N n]

A gust of wind pried loose a section of sheet-metal roofing. 一陣強風撬松了一部分金屬板屋頂。

2. N-UNCOUNT Roofing is the work of putting new roofs on houses. 鋪屋頂[oft N n]

...a roofing company. ...一家鋪屋頂公司。