跫然足音

Explanation: Trampling: footsteps. Originally referred to the long-term living in the desolate lonely place, the sudden visit of the others felt joy. Unique visitors after the metaphors often. 　　Source: "Zhuang Zi Xu no ghosts" husband who fled empty, quinoa Di stoat ferret almost the diameter of column, jump bit the air, well-known figure footsteps trampling hi carry on, however. " 　　Examples: Yan Yue Hu Wen air was: "labor in vain Jun drive, can be described as ~ carry on." (Qing Pu "Liao Wu Xiang Gong")