bad blood

名词 bad blood:

1. a feeling of ill will arousing active hostility
   同义词：animosity, animus

1. There's a lot of bad blood between those two families.
   这两家人积怨很深。
2. The two brothers fell in love with the same girl, which caused bad blood between them.
   兄弟俩都爱上了同一位姑娘，这使得两人互相仇恨。
3. All the bad blood between the groups was forgotten when they had to unite against their common enemy.
   当要团结起来反抗共同的敌人的时候，两派忘掉了相互间的一切仇恨。