curved space

例句：

1. 1.The car's wheels are curved to help it turn smoothly.
   汽车的车轮是弯曲的，以帮助它平滑转弯。
2. 2.The river flows through a curved valley.
   这条河流过一个弯曲的山谷。
3. 3.The bridge is designed with curves to reduce the weight on the road.
   这座桥的设计考虑到了曲线，以减少对道路的压力。