东劳西燕

Explanation: LO: Shrike. Analogy couples, friends farewell. 　　Usage: Joint type; as object; analogy separation 　　Source: Song Guo Maoqian "Music Bureau Poetry Miscellaneous Music Songs eight East Feibo Lao Song": "East Feibolaoxi swallows, when Weaver Nibea meet." 　　Examples: Surprising! Could there have to take this man to the Siberian railway traveling, and we just make a ~ it? (Liang, "The Future of New China," the fourth round)