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
He is tough in doing everything.
他不管做什么事都很有毅力。
We were pleased to hear from your letter of 6 August that you were impressed with our selection of toys.
我们很高兴收到你方8月6日来函得知你方对我们的玩具非常感兴趣。
She is quite good with her hands.
她的手很巧