Yeah, polar bears OK, have you ever seen a polar bear?

，极熊。你见到过吗？

Polar bears prefer seals for their meals.

极熊最爱吃海豹。

This is a disaster for polar bears.

极熊而言，这是一场灾难。

We see polar bears as a sentinel of climate change.

“我们将极熊看作气候变化的哨兵。

" And try not to meet any polar bears."

“尽量不要碰上极熊。”

Oh, dear. That polar bear's got the snuffles.

哦，天呐。那只极熊在抽鼻子。

Polar bears nurse their cubs for almost eight months.

极熊会喂养它们的幼崽将近八个月。

Polar bears are in danger of extinction.

极熊有绝种的危险。

We have polar bears and a real iceberg too!

我们有极熊，还有真正的冰山！

Underneath this fur polar bears have black skin.

在这层毛，是黑色的。

This keeps the polar bear warm.

让极熊保持温暖。

She's going to be researching polar bears.

她将研究极熊。

Check out the sledding polar bear paper.

看看这些滑雪橇的极熊包装纸。

Polar bears are the largest land carnivore.

极熊是最大的陆地食肉动物。

Once it forms, the polar bears walk onto it.

一旦结冰，极熊就会在冰层上走。

And the polar bears help the people of Churchill.

极熊也帮助了丘吉尔镇的居民。

Polar bears spend a lot of time hunting seals.

极熊花许多时间猎捕海豹。

But it cannot warn of approaching polar bears.

但正在接近的极熊它无法发出警告。

While the polar bear struggles, the walruses relax on the beach.

极熊在这边挣扎海象则在沙滩上休息。

Polar bears padded across the snowy vales of southern England.

即便如此，他们依然不得不经历至少和今天的西伯利亚冬天一样可怕的气候。