The inspector found a small cavity inside the wall behind the office printer.

檢查員在辦公室印表機後方的牆內發現一個小空洞。

Please pack fragile items so no empty cavity remains inside the shipping box.

請包裝易碎物品，確保運送箱內不留任何空隙。

The hotel repaired a cavity in the lobby floor before the conference guests arrived.

飯店在會議賓客抵達前修補了大廳地板上的一個坑洞。