曲线图表

例句：

1. 1. The curve of the river isbeautiful.
   这条河的曲线很美。
2. 2. Thepath to the summit was steep and winding.
   通往山顶的路很陡且曲折。
3. 3.The straight line between the two cities isabout 50 miles.
   两座城市之间的直线距离大约50英里。