and take their first steps in the outside world. 第一次踏足这个陌生的户外世界

102. A mother grizzly emerges from her den
     灰熊妈妈正走出巢穴
103. after six months' dozing underground.
     长达6个月的地下冬眠结束了
104. Her two cubs follow her
     两只小熊紧跟着它们的母亲
105. and take their first steps in the outside world.
     第一次踏足这个陌生的户外世界
106. These steep slopes provide a sanctuary for the cubs.
     这些陡峭的斜坡也是小熊的庇护所
107. A male bear would kill and eat them given the chance.
     公熊只要有机会就会吃掉它们
108. But big animals find it difficult to get about here.
     不过大型动物很难爬到这个地方

来自《行星地球 第一季 第二集 Planet Earth S01E02 山地》第 105 行