边线

例句：

1. 1. The line of trees marks the edge of the forest.
   树木的排列线是森林边缘的标志。
2. 2. The line of traffic is moving slowly due to heavy rain.
   由于大雨，交通线缓慢移动。
3. 3. The line of dots represents the path of the ball.
   点阵代表球的路径。