- The polar bear cubs emerge from the den in which they were born.
小北极熊从洞穴中探出头来
- Their mother stretches her legs after five months under the snow.
它们的母亲在雪下呆了5个月后终于可以出来伸伸腿
- They are just two months old
小熊才两个月大
- and instinctively follow her lead.
本能地跟在母亲后面
- A steep slope makes the best site for a den,
陡峭的斜坡是穴居的好地点
- but it's a tricky place to take your first steps.
但第一次踏出脚时是不能掉以轻心的
- It may look like fun but this is serious training for the task ahead.
可能看起来很好玩, 但这都是为马上来临的严峻挑战所做的训练
来自《行星地球 第一季 第六集 Planet Earth S01E06 冰雪世界》第 180 行