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
Chances are they'll give in.
他们也许会做出让步。
Health is not valued till sickness comes.
有病方知无病乐。
It is not long before they are so accustomed to swimming that they can pick up weights from the floor of the pool.