物是人非

Explanation: Something original or something, but who has not been the people. Used for expression overtaken by events. Thus miss the enemy. 　　Usage: Joint type; as predicate, object, clause; 　　Source: Song Li Qing-zhao, "Wuling Spring" words changed everything off, the first flow of tears like language. " Thesaurus:  that was one situation,and this is another; times have changed, circumstances change with the passage of time, the affair is over and the situation has changed, Qingsuishiqian, Popular easily when moved, When the river rises, the boat floats high., (literally) When water rises, the boat rises with it.--When the person one relies on rises in the world, one rises with him