A fall from here would mean certain death. 从这里跌落必死无疑

50. But father's not looking and the temptation to join the others
    可父亲没有看着她 加入大家的诱惑
51. is irresistible.
    又实在无法抗拒
52. She'll need to be careful.
    她必须小心翼翼
53. A fall from here would mean certain death.
    从这里跌落必死无疑
54. It's the first time she's been as high as this on her own.
    这是她第一次独自爬到如此高的地方
55. As she climbs still higher, the branches get thinner and thinner.
    她越爬越高 树枝越来越细
56. Her tail has caught her...
    尾巴救了她一命

来自《行星地球 第二季 第三集 Planet Earth S02E03 丛林》第 53 行