沿线

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

在边界沿修筑了堡垒以保护国家免受攻击。

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,是反映该区地形地貌特征的重要的地形结。

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.

过，照现在的形势来，我觉得将来最好是要设我们这样的长城保护员了，那就说明长城沿的人们保护长城的意识已经到了相当高的境界了，人为破坏长城的现象也没有了。