原文视听

Ringed seals are hunted by polar bears.
环斑海豹是北极熊的猎物之一
In fact, in some parts,
事实上 在某些区域
polar bears eat almost nothing else.
这几乎是北极熊唯一的食物
So, it's very understandable
所以可以理解的是
that this mother ringed seal...
这位正在注视我的...
who's looking at me now,
海豹妈妈
should be a little apprehensive.
显得有点害怕
That pup of hers is only about three or four days old.
她的宝宝刚刚出生三四天
And the pup won't be able to swim
海豹宝宝还要等两三天
for another two or three days.
才能学会游泳
Seals have good reason
在冰穴附近时
to be nervous around their holes.
海豹的紧张情绪不无理由
They need the holes to breathe when the sea is frozen,
当海面结冰时 它们需要出洞呼吸
but this makes them easy to find.
但这也使它们很容易暴露
Polar bears can sniff out seal holes,
即使海豹穴埋于雪下
even if they're covered in snow.
北极熊也能嗅出它们的位置
Spring is the best hunting season.
春季是狩猎的最佳时节
This mother's found a food store under the snow
这位母亲找到了埋于雪下的贮藏食物
that was probably made by an Arctic fox.
这可能是北极狐所为
It's a time of plenty now,
这是个富饶的时节
but the bear family need to make the best of it
但北极熊家庭仍需要尽力寻觅食物
because the good times are about to come to an end.
因为好时节马上就要结束了

重点解释

And the pup won't be able to swim for another two or three days.海豹宝宝还要等两三天才能学会游泳

be able to:会, 能

I may be able to help you in some way.

我也许可以从某个方面去帮助你。

It is good to be able to cast aside winter clothes.

能把冬衣搁在一边了，真好。

Polar bears can sniff out seal holes,even if they're covered in snow.即使海豹穴埋于雪下北极熊也能嗅出它们的位置

sniff out:发现, 寻找

It's his job to sniff out abuses of power.

他的职责就是查究滥用权力的行为。

because the good times are about to come to an end.因为好时节马上就要结束了

be about to:刚要, 即将

The situation was about to boil over.

当时的形势几乎到了紧急关头。

She will be about to write a letter.

她将准备写信。