arc of a graph

例句：

1. 1. The sun sets over the horizon, casting a long arc of orange light across the sky.
   太阳在地平线上落下，在天空中投下长长的橙红色弧线。
2. 2. The car's steering wheel is angled to create an arc that guides the driver towards the destination.
   汽车的方向盘倾斜形成一条弧线，引导驾驶员朝向目的地行驶。
3. 3. The path follows a gentle arc around the hill, leading to the summit.
   小径沿着山丘缓缓地绕着走，最终通向山顶。