(gentle upbeat music)
[轻音乐]
(bear huffs)
[熊叫声]
– [Narrator] Thanks to their strong, curved claws,
多亏了它们强壮且弯曲的爪子
these cubs can climb from a very young age.
这些幼崽小小年纪就可以爬树
But perfecting the technique takes time.
但是把这门技术练就到炉火纯青需要时间
They need to learn which trees are best for gripping onto.
它们需要学习哪些树最利于攀爬
Smaller trees and branches are good for practice.
较小的树和枝干利于它们练习
Well, most of the time.
好吧 只限于大多数情况
(wood cracks)
[木头断裂声]
This tree is too flaky.
这棵树的树皮太容易脱落
(cub squeals)
[幼崽的叫声]
This tree is too slippery.
这棵树太滑了
But this tree is just right.
但这颗树就刚刚好
(cub grumbles)
[幼崽呢喃]
Going up is one thing.
上去是一回事
(cub whines)
[幼崽的嘀咕声]
But coming down again can require a helping hand.
然而再次下来就需要一双援手
(cub squeals and grumbles)
[幼崽生气的抱怨声]