cutting shoe of caisson

例句：

1. 1.The construction of the new bridge required a large caisson to be sunk into the riverbed.
   建造这座新桥需要将一个大型沉箱沉入河床。
2. 2. The caisson was designed to withstand the pressure of the deep sea.
   这个沉箱被设计来承受深海的压力。
3. 3. The caisson was used to hold back the floodwaters during the storm.
   在暴风雨期间，这个沉箱用来阻挡洪水。