The great barrier reef is the world's largest network of coral structures.

大堡界最大的珊瑚群。

Coral reefs are already appreciated for their beauty.

珊瑚绚丽的外表已备受赞赏。

Like coral reefs, they are a nursery for the oceans.

像珊瑚一样它们海洋的托儿所。

The coral reefs absolutely need human intervention to help.

珊瑚绝对需要人类的干预来帮助。

Coral bleaching is triggered by changes in the coral's environment—including increased temperature, sunlight, or pollutants.

发全球珊瑚白化的珊瑚环境变化，其中包括气温升、阳光变化或污染物。

It is a very rare kind of reef.

这一种非常罕见的珊瑚。

Someone else has arrived at the reef.

又有鱼来到了珊瑚。

Let's go back to the coral reefs.

我们再回到珊瑚的。

It's reportedly in impeccable and unharmed condition.

据报道，珊瑚完好无损。

Setting up marine protected areas could help reefs.

建立海洋保护区可以帮助珊瑚。

And the corals we are finding really are not responding very well.

我们发现的珊瑚反应并不好。

The healthy reef sounds that you just heard can be used to regenerate coral reefs.

你刚听到的健康珊瑚的声音可以用于再生珊瑚。

There are a number of threats to the health of coral reefs.

珊瑚的健康饱受威胁。

Which one of these contains the world's largest collection of coral reefs?

界最大的珊瑚群在哪里呢？

They help to (inaudible) and create reefs.

它们帮助形成(听不见的)珊瑚。

Coral reefs are important for many reasons.

珊瑚之所以重要，有很多原因。

Coral reefs are sometimes called the 'rainforests of the sea.'

珊瑚有时被称作海里的热带森林。

There's something very odd about coral reefs.

这里的珊瑚看去很奇怪。

Beyond the coral stretches a world of shifting sand.

在珊瑚，流砂的界。

The story out there is that all coral reefs are dying.

据说，所有的珊瑚都在逐渐死亡。