线路用英语可以说作"line"。

来源："line"一词来源于拉丁语"linea"，意为"线、细绳"。

例句：

The bus follows a straight line across town. (公交车沿城镇的一条直线行驶。)

The train runs on a single line. (火车沿单条铁路行驶。)

The plane was on a collision course with the mountain. (飞机与山之间存在碰撞的风险。)