feud|feuded|feuding

这两个邻居因为一棵树的位置而长期不和。

The two neighbors have been in a ___feud for years over the position of a tree.

这两个家族因为土地纠纷已经争斗了几十年。

The two families have ___feuded over the land dispute for decades.

这两个家族因为土地问题已经争斗了几十年。

The two families have been ___feuding over land disputes for decades.