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Every summer, over 40 million penguins
每年夏天 超过四千万只企鹅
take to the Southern Ocean to feed.
涌入南冰洋觅食
They're joined by thousands of whales.
随之一起的还有数千头鲸鱼
Minkes are the most numerous.
绝大部分是小须鲸
They all come here to harvest the richest ocean on Earth.
它们来到这地球上最丰饶的海洋
Southern humpbacks
南方的座头鲸
have travelled 4,000 miles from the equator
从赤道出发 长途跋涉四千英里
to get here in time for the Antarctic summer.
以赶上南极的夏天
Each year, the sea ice that surrounds Antarctica melts,
每年 环绕南极的海冰融化时
effectively halving the size of the continent
大洲的面积将会减半
and exposing rich waters around its coastline.
沿海岸线的丰饶海水重见天日
It's the most spectacular seasonal change
这是我们地球上
occurring anywhere on our planet.
最壮观的季节转换
The remnants of the sea ice are occupied by sunbathing seals
沐浴着阳光的海豹慵懒地躺在浮冰上
that have been here all winter.
整个冬季它们都在这
But new arrivals are following the retreating ice edge.
但随着冰雪融去 有新客到访
And they have come here to hunt.
它们来此捕食

重点解释

Southern humpbacks have travelled 4,000 miles from the equator to get here in time for the Antarctic summer.南方的座头鲸从赤道出发，长途跋涉四千英里以赶上南极的夏天

in time:及时

We're just in time to catch the train.

我们正好赶上了火车。

He brake his car just in time to avoid an accident.

他及时煞车，避免了一次事故。

The remnants of the sea ice are occupied by sunbathing seals沐浴着阳光的海豹慵懒地躺在浮冰上

occupy by:被...占据

His habitual place at the table was occupied by a stranger.

他惯常坐在桌旁的位置被一个陌生人占据了。

The capital has been occupied by the rebel army.

叛军已占领了首都。

occupy常用句型:

用作动词 (v.)

occupy in〔with〕 (v.+prep.)

1.从事于; 忙于 engage in (doing sth); busy oneself in (doing sth)

occupy oneself in〔with〕 v-ing

He occupied himself in collecting stamps.他忙于集邮。

They are occupying themselves in growing their own food.他们自己正忙于种植自己所需的粮食。

用于 be ～ed 结构

He has been deeply occupied in listening to a tape.他一直在忙于专心听录音。

He was occupied in writing letters.他忙于写信。