Liǎng jiā yǒu shēnchóu dàhèn.
The two families hold a deep grudge against each other.
Wǒmen hé tā wúyuān wúchóu, gèng wú shēnchóu dàhèn.
We have no quarrel with him, let alone any deep hatred.
Tāmen de shēnchóu dàhèn yóulái yǐjiǔ.
Their bitter feud goes back a long way.