你的承诺苍白了海誓你的承诺无力了山盟
[nĭ de chéng nuò cāng bái le hăi shì nĭ de chéng nuò wú lì le shān méng]
Your promise has whitened the ocean vows; your commitment weakened the mountain pact. It implies a great disappointment after someone's unfulfilled solemn promises, making grand oaths seem empty.