恨海难填

Explanation: Sea of ​​Regret: resentment, such as the sea; difficult to fill: hard stuff. Analogy grievances it hard. 　　Source: "Mountains and Seas by Kitayama," Yan's girl is called baby girl. Baby girl swim in the East China Sea, drowning not come back, so as Jingwei, title of the Western Hills of wood and stone often to bury in the East China Sea. "