for a few miles from the coast the ice is already splitting. 离岸几英里远的海面上 冰层已经开始崩裂
and the mother has led her cubs a mile from the den. 母熊已经带领幼熊离巢1英里远
She's becoming weak from hunger 饥饿将它折磨得虚弱不堪
As the sun departs from the Antarctic 太阳已远离南极