the outside covering on the top of a building, closed vehicle, tent, etc.
put a roof on or be a roof for
"the roof of the cave was very high"
"I could see the roof of the bear's mouth"
"he put a ceiling on the number of women who worked for him"
"there was a roof on salaries"
"they established a cap for prices"
The shed, with its roof of..corrugated iron.
出自： F. King
I wished I could tear the roof off and let some light into the flat.
出自： H. Mantel