But hunting prey that knows you're here... 但猎物也已知晓敌人环伺在周围

53. The water hole is the only place where he has a chance
    这片水坑是它唯一有机会
54. to catch a deer.
    捕食鹿的地方
55. A single adult would be enough to feed him for the entire dry season.
    只需捕食一只成年鹿 便足够沼泽鳄度过整个旱季
56. But hunting prey that knows you're here...
    但猎物也已知晓敌人环伺在周围
57. ..requires something truly remarkable.
    想要捕捉成功 就需要一些奇招
58. He creates...
    沼泽鳄布置了
59. ..a trap.
    一个陷阱

来自《行星地球 第三季 第四集 Planet Earth S03E04 淡水》第 56 行