Rosaline's family was the arch-enemy of his family.
罗莎琳的家族是他家族的宿敌。
2
It is certainly fun to force the Springer lot to reside on a street named for an arch-enemy.
而要逼迫“施普林格派”苟安于以宿敌命名的街道上，倒真是有好戏看了。
3
His arch-enemy Luke is looking for a way to invade the camp via an ancient labyrinth and if he succeeds, thousands of bloodthirsty monsters will attack.