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'm worried, Philip.
我很担心, Philip。
It's no big deal.
这没什么大不了的。
A crowd of people gathered round him and a lady rubbed his arm with soap and butter, but George was firmly stuck.