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
and sometimes just stubborn.
有时候甚至近乎顽固。
Dogs that bark at a distance bite not at hand.
远处叫得凶的狗，不会近身来咬人。
But this was before Annie Sullivan came to stay.
但是，这都是安妮·莎利文来住下之前的事了。