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The male polar bear has been out on the frozen ocean all winter.
公北极熊整个冬天都待在冰封的海面上
Times have been lean,
这个季节食物非常匮乏
and a bear cub would certainly make a welcome snack.
几头小熊仔绝对是上好的零食
However, the mainstay of his diet is seals,
但是 他主要还得靠海豹充饥
and now is the time when they have their pups.
而现在正是海豹生育的季节
The surface of the frozen sea is marked with pressure ridges,
冻结的洋面上 遍布着因潮汐而形成的
and cracks created by the fluctuating tides.
冰脊和裂纹
Both are good places to look for seals.
这些都是猎食海豹的好去处
He has detected a seal den beneath the ice.
他发现了一处藏在冰下的海豹窝
Now he must pin-point it,
现在 他必须借助异常灵敏的嗅觉
using only his extraordinary sense of smell.
来进行精确定位
By treading lightly, he can avoid scaring his prey.
他小心翼翼 以免打草惊蛇
He will need to punch through a metre of snow to reach the den,
他得打穿一米厚的雪才够得到海豹窝
and if his aim is not exactly on target,
如果他定位不够精准
the seal will certainly escape.
海豹就会逃走
