余响绕梁

Explanation: Describe the high-pitched singing round, endless finish. Metaphor poems are meaningful, interesting. 　　Source: Jin Zhanghua "Natural History" Volume QIN Qing Gu Wei to her friend saying "Qi Xi Hane East, leaving food, over-Yong door, vend song fake food away, the remaining ring linger three days without a break, so its Eph people go. '" 　　Examples: Han Yong Qi E door too, vend song fake food, both complete and ~, three days without a break. ★ Don Lee Kang "monoid Chi" volume