袅袅余音

Explanation: Curl: Wanzhuan melodious. Residual sound: the sound is not absolute. After describing music sweet melodious voice still unbroken, echoed in my ears. With the "residual sound wave." 　　Source: Qing Wei Xiuren "Hua Yue Hen" fifty-back: "Listen kid speaking party of the book, not on the loose, still lingering miles curl once." 　　Examples: She has gone, but her voice is still beautiful ~, prevalent. ★ tomorrow the "walk on the trail"