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 and I are very busy these days.
这些天来我们俩都很忙。
Man is the artificer of his own happiness.
人之幸福，自己创造。
Half an hour? That's too long! Is there a bus?
半小时？那太久了！有公共汽车吗？