solid car

例句：

1. 1. The car is solidly built and has a smooth ride.
   这辆车结构坚固，驾驶平稳。
2. 2. The rock is solid, so it can't be moved easily.
   这块岩石很坚固，所以不容易移动。
3. 3.The engineer used solid materials to build the bridge.
   工程师使用了坚固的材料来建造这座桥。