roof·ing 
(rfĭng, rfĭng)
(rfĭng, rfĭng)n.
1. Materials used in building a roof.
2. A roof.
| 单词 | roofing |
| 释义 | roof·ing (rfĭng, rfĭng)n. 1. Materials used in building a roof. 2. A roof. |
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