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
Oh, leaving home is part of growing up.
呵 ，离开家是成熟过程的一部分。
It is better to wear out than to rust out.
与其锈掉，不如用坏。
Who do you think you are?
你以为你是谁？