断绝关系

tā men jué dìng le duàn jué guān xi

他们决定了断绝关系。

They decided to end their relationship.

tā zì cóng yǔ nán péng you duàn jué guān xi yǐ lái yī zhí qíng xù xiāo chén

她自从与男朋友断绝关系以来一直情绪消沉。

She's been depressed since the break with her boyfriend.