balance bridge support

例句：

1. 1.The engineer designed the bridge to be balanced for maximum stability.
   工程师设计了这座桥，以实现最大的稳定性。
2. 2. The new bridge supports the weight of the vehicles and pedestrians.
   这座新桥支撑着车辆和行人的重量。
3. 3.The bridge support is made of steel, which is strong and durable.
   这座桥支撑由钢制成，既坚固又耐用。