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
I'm sorry. I missed that.
对不起，我没听清。
Do not cut down the tree that gives you shade.
不要忘恩负义。
This product is doing very well in foreign countries.
这种产品在国外很畅销。