Caissons
(caisson 的复数) n. 弹药箱, 弹药车, 沉箱(水下工程用)\\n[医] 沉箱
🗣️ 情景例句
Can't you do something about it?
你就不能想点办法吗？
It is easy to open a shop but hard to keep it always open.
开设店铺易，维持常开难。
I seldom have any difficulties.
我很少碰到困难。