rock abutment

例句：

1. 1. The abutment of the bridge supports the weight ofthe road.
   桥梁的支座支撑着道路的重量。
2. 2. The engineer designed the abutment to withstand the earthquake.
   工程师设计了这座拱桥以承受地震。
3. 3. Theabutment is made of concrete andreinforced with steel bars.
   这个支座由混凝土制成，并用钢筋加固。