bad blood
US /bæd blʌd/
UK /bæd blʌd/

1.
宿怨, 嫌隙, 不和
feelings of hate or anger between people because of arguments in the past
:
•
There's been bad blood between the two families for generations.
这两个家族之间世代都有宿怨。
•
After their big argument, there was a lot of bad blood between them.
他们大吵一架后,彼此之间有了很多嫌隙。