caisson
n
1 large watertight box or chamber in which men can work under water (eg when building foundations) 沉箱(工人进行水下作业, 如建底座时所乘的大潜水箱).
2 large box (usu on wheels) in which ammunition is carried 弹药箱; (通常为)弹药车.
🗣️ 情景例句
I care about people, not things.
我关心的是人而不是东西。
All bags contain an inner waterproof lining.
所有包内都有一层防水内衬。
It will help me understand the point you are trying to make.