curved mesh

例句：

1. 1. The river flows through a beautiful valley with curves and twists.
   这条河流流经一个美丽的山谷，有着曲折和蜿蜒。
2. 2. The car's tires are curved to better grip the road.
   汽车的轮胎是弯曲的，以便更好地抓地。
3. 3. The sculpture is curved, creating an undulating surface.
   这件雕塑是弯曲的，创造了起伏的表面。