mound- shaped curve

例句：

1. 1. The mountainrange is shaped like a mound-shaped curve.
   山脉的形状像是一个堆状曲线。
2. 2. The engineer designed thecurve to follow the contour of the land.
   工程师设计了这条曲线以适应土地的轮廓。
3. 3. The mound-shaped curvewas used as a guide for the constructionworkers.
   这个堆状曲线被用作建筑工人的引导线。