ramparts

A mole can undermine the strongest rampart.

一只田鼠能毁坏最坚固的堡。

There is guard toing-and-froing along the rampart.

有一个卫兵在沿着城堡来回走动。

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，照在的形势来，我觉得将来最好是不需要设我们这样的长城保护员了，那就说明长城沿线的人们保护长城的意识已经到了相当高的境界了，人为破坏长城的也没有了。