cat and dog life在西方的文化里，猫和狗一般代表着水火不容、敌对的意思，用来指夫妻或者情侣之间争吵不休的生活；经常吵架的生活；争争吵吵的日子。

【例句】
They have led a cat and dog life almost since the day they were married.
他们几乎从结婚那天起就一直过着争吵不休的生活。

They have led a cat-and-dog life ever since they were married.
他们夫妻俩自从结婚以来，经常吵架。