- By the end of the summer, the bear has lost half his weight.
但在夏天结束时,公熊的体重已经减少了一半 - With the ice long gone, he is forced onto land in search of food.
冰层早已融化,迫使它到陆地上寻找食物 - There will be no easy meals on this island.
在这座岛上找到吃的并不容易 - Walruses are the largest seals in the world.
海象是世界上最大的海豹科动物. - They weigh over a ton and are armed with tusks a metre long.
体重超过1吨, 有长达1米的象牙为武器 - Exhausted from his swim, the bear must regain his strength.
游得精疲力竭的北极熊必须恢复体力 - The next day, a sea fog shrouds the island.
第二天海雾笼罩了这座岛屿
Walruses are the largest seals in the world. 海象是世界上最大的海豹科动物.
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