你的承诺还不如狗值钱
[nĭ de chéng nuò hái bù rú gŏu zhí qián]
Expressing extreme disappointment and devaluation, it means 'your promise isn’t even as valuable as a dog's loyalty'. It’s a harsh criticism aimed towards promises made and not kept, saying even an animal’s loyalty is worth more than a person's word. The person chose a common man’s best friend for comparison, indicating how deeply broken trust has been breached.