| 词汇 | cavity wall |
| 释义 | cavity wall noun [ C ] uk/ˌkæv.ɪ.ti ˈwɔːl/ us/ˌkæv.ə.t̬i ˈwɑːl/ （防湿防寒的）空心墙，夹层墙 a wall of a building formed from two walls with a space, usually for air, between them. It is made in this way to keep out water and cold air. |
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