资料来源 : WordNet®

keen-sighted
     adj 1: having very keen vision; "quick-sighted as a cat" [syn: {argus-eyed},
             {hawk-eyed}, {lynx-eyed}, {quick-sighted}, {sharp-eyed},
             {sharp-sighted}]
     2: capable of seeing to a great distance [syn: {eagle-eyed}, {farseeing},
         {longsighted}]