blood feud

1. 世仇；宿仇；血海深仇
   A blood feud is a long-lasting, bitter disagreement between two or more groups of people, particularly family groups. Blood feuds often involve members of each group murdering or fighting with members of the other.

1. In bringing their blood feud to Earth, the warring sibling gods have left open a mystical door that puts the entire mortal world in danger.
   电影中，雷神兄弟将血海深仇带到了地球，兄弟间的交战开启了一道神秘之门，使得整个人类世界陷入危机。
2. There was a blood feud between the two families.
   这两个家族间有血仇。
3. The government says it doesn't believe Kurdish rebels were responsible and some sources have blamed the dispute, or a blood feud between families.
   政府表示，此次袭击与库德叛军无关，而据一些消息人士称，这是家族间的纷争或血海深仇造成的。
4. This blood feud was handed down from generation to generation.
   这血海深仇传了一代又一代。

noun

1. a feud in which members of the opposing parties murder each other

   Synonym:    vendetta