B-2: bad blood 恨
A:Let's invite Bobbie and John to our party, OK?
A: 咱们邀请鲍比和约翰来参加我们的晚会,好吗?
B: You can never do that.
B: 你可别那样做。
A: Why?
A: 为什么?
B: There's been bad blood between them since Bobbie took away John's girlfriend.
B:自从鲍比抢走了约翰的女朋友,他们之间就恨得咬牙切齿。