不知去向

Explanation: Where do not know 　　Usage: Verb-object type; for the predicate; to describe someone or something not found 　　Source: Ming Feng Meng, "Eastern Zhou Chi," the first round: "Xuan Wang asked: 'What children are now in red?' The answer was: 'self-taught song, the disappeared'." 　　Results: A flea jumped up 　　Postscript: A flea jumped up Thesaurus:  take to itself wings, spread far and wide, Flying without wings Antonym Group:  recoup, Chu also Hepu