回味无穷

Explanation: Aftertaste: refers to the finish after eating something. Analogy recall a thing, more and more convinced that interesting. 　　Usage: The main predicate; as predicate, object, complement; meaningful things that I think back 　　Source: Song Wang Yucheng, "collection Juan Liu, Xiao Xu Olive" poem: "a long time with nostalgia, Shijue Gan as yee." 　　Examples: This article has profound implications, makes ~. 　　Riddle: Muslim canteens run very well Thesaurus:  have appeal, with sin cere words and earnest wishes, sublime words with deep meaning, be simple in language but profound in meaning, Less in simple, Made almost that much, Yanjinyiyuan