But these youngsters are fast learners, 但这些小羊学得很快
But heading for this particular rocky outcrop could be a mistake. 但爬上这块突出的岩石可能是个错误
But once on level ground, they're vulnerable. 但回到平地上 他们就很容易遭到攻击
But the newborn kids are still having to find their feet. 但新生的雏羊还在蹒跚学步
But living in this sanctuary comes with a cost. 在生活在这里也要付出代价
but they are still so dizzyingly steep 但却异常险峻
to discover a spectacular but hostile word. 发现一个壮观但充满敌意的世界
but, for one and a half million penguins, 但是对于一百五十万只企鹅来说
but they are home to some of the most precious wildlife on Earth. 但它们仍是地球上某些珍贵动物的家园
but numbers can also be something of a problem 但当你试图寻找自己的巢穴之时