but lions struggle to run it down in water. 但狮子并不擅长在水中捕猎

48. Every year, 5,000 square miles of grassland are flooded.
    每年都有近一万三千平方公里的草原被水淹没
49. For one pride of lions, this poses a major problem.
    对于狮群来说 这成了最大的问题
50. There may be plenty of prey around,
    虽然猎物众多
51. but lions struggle to run it down in water.
    但狮子并不擅长在水中捕猎
52. The pride has three-month-old cubs.
    狮群中有三个月的幼崽
53. They've never seen water before.
    它们以前从未见过水
54. If their mothers don't make a kill soon,
    如果母狮们短时间内捕不到猎物

来自《行星地球 第二季 第五集 Planet Earth S02E05 草原》第 51 行