沿线

A line of forts was built along the border to protect the country against attack.

在边界沿线修筑堡垒以保国家免受攻击。

The thalweg in loess hill area is an important terrain structural line, reflecting topography and landform character.

黄土丘陵区的沟沿线,是反映该区貌特征的重要的结构线。

It seems unnecessary to have watchmen like me on the Wall in the future when people along the Wall know better than to further vandalize the rampart.

不过，照现在的势来，我觉得将来最好是不再需要设我们这样的长城保，那就说明长城沿线的人们保长城的意识已经到相当高的境界，人为破坏长城的现象再也没有。