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
because we have a little surprise for you today.
因为今天我们要给各位一项惊喜。
Did you go to the theater this morning?
你今早去戏院了吗？
It would be easier for us if you would ship next month.
如果能在下个月出货的话我们会轻松一些。