cross curve

例句：

1. 1. The engineer designed the cross curve to improve traffic flow.
   工程师设计了交叉曲线以改善交通流量。
2. 2. The physicist used a cross curve to demonstrate the concept of inertia.
   物理学家使用交叉曲线来演示惯性的概念。
3. 3.The architect planned the cross curve to create a seamless transition between buildings.
   建筑师规划了交叉曲线，以在建筑物之间创造无缝过渡。