The Vietnamese phrase "cáo chung" can be understood as a verb meaning "to toll the knell of." This expression is often used in a figurative sense to signify the announcement of something ending or coming to a conclusion, particularly in a solemn or serious context.
In literature or poetry, "cáo chung" can be employed to evoke deep emotions about the inevitability of change or loss. It could be used metaphorically to discuss broader themes like the end of a relationship or the decline of a tradition.