- blood feud (between/with somebody)
a long conflict between families, involving murders that are intended as punishment for past murders Their romance is doomed by the long-standing blood feud between their families. 他们家庭之间长期的血腥争执注定了他们的浪漫。 Blood feuds and general gangsterism added to the local crime rate. 家族血仇和普通帮派斗争增加了当地的犯罪率。