Cavity wall
[医] 洞壁
📖 牛津释义
cavity wall
wall consisting of two separate walls with a space between, designed to give extra insulation 夹壁墙（两道墙中间有空隙, 用以增强绝缘性）.
🧩 词语组成解析
🗣️ 情景例句
You think you've got what?
你想你已经拍齐了什么？
Ah, goody! Breakfast is ready.
噢，太好了！可以开饭了！
No, we're American.
不是，我们是美国人。