at each other's throats
US /æt iːtʃ ˈʌðərz θroʊts/
UK /æt iːtʃ ˈʌðərz θroʊts/

1.
爭吵不休, 互相攻擊
if two people are at each other's throats, they are arguing angrily
:
•
The two brothers are always at each other's throats.
兩兄弟總是爭吵不休。
•
They've been at each other's throats ever since the argument.
自從那次爭吵後,他們就一直爭吵不休。