It's just not been a good day. 今天还真不是个好日子

42. But these youngsters are fast learners,
    但这些小羊学得很快
43. and they're now almost as sure-footed as their parents.
    现在几乎可以和双亲一样如履平地了
44. The fox will have to find its meal elsewhere.
    赤狐只能去别处觅食
45. It's just not been a good day.
    今天还真不是个好日子
46. Now, at last, the young ibex can drink.
    小羱羊终于喝上水了
47. But they'll soon need to
    但很快他们又得
48. return to the safety of the sheer cliffs.
    回到峭壁上的安全区域

来自《行星地球 第二季 第二集 Planet Earth S02E02 山脉》第 45 行