Playing on a practice tree with her older brother and sister, 通过和哥哥姐姐在练习树上玩耍

33. One third of spider monkeys never make it to adulthood.
    三分之一的蜘蛛猴都活不到成年
34. This youngster is only a few months old.
    这只幼崽只有几个月大
35. Her future depends on her ability to climb.
    她的未来取决于她的攀爬能力
36. Playing on a practice tree with her older brother and sister,
    通过和哥哥姐姐在练习树上玩耍
37. she's already learning to use her tail as a safety line...
    她已经学会用尾巴当安全索
38. under her father's close watch.
    一切都在父亲的注视之下
39. She's keen to join in the game but she's the youngest and,
    她很想加入游戏 但是由于年纪最小

来自《行星地球 第二季 第三集 Planet Earth S02E03 丛林》第 36 行