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

大堡礁世界最大的珊瑚礁群。

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

像珊瑚礁一样海洋的托儿所。

He used to go fishing on the reef.

他也常常到礁石上去钓鱼。

Coral reefs are already appreciated for their beauty.

珊瑚礁绚丽的外表已备受赞赏。

The archipelago is celebrated for its rich marine life and underwater coral reefs.

这个群岛以其丰富的海洋生物和下珊瑚礁而闻名。

But when reefs are bleached or damaged, the fish flee, and the reef suffers.

但当珊瑚礁白化受损后，鱼群会逃走，礁石也会遭受破坏。

The manta rays include one species that lives near reefs and another that's migratory.

蝠鲼包括在其中生活在礁附近的一个物种, 而另一种则有迁居习惯。

Far better, some say, to turn old rigs into coral reefs.

若要全面考虑的话，有些人认为应该把老的钻塔转换成珊瑚礁。

Both offer stunning views of tropical waters dotted with colourful fish and coral reefs.

这两地都可以欣赏到热的壮丽景色，那里点缀着五颜六色的鱼类和珊瑚礁。

Are they all appliance brands, names of galaxies, special ops forces, or oceanic reefs?

他都电器品牌，星系名称，特种部队，大洋礁？

They help to (inaudible) and create reefs.

帮助形成(听不见的)珊瑚礁。

The reefs near Key West are important to both people and wildlife.

基韦斯特岛附近的珊瑚礁对人类和野生动物都很重要。

Next, we're talking about coral, Carl? No, coral, specifically coral reefs.

接下来，我来谈谈珊瑚吧。我的名字Carl？当然不，珊瑚，具体来说珊瑚礁。

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

珊瑚礁的健康饱受威胁。

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

据说，所有的珊瑚礁都在逐渐死亡。

Let's go back to the coral reefs.

我再回到珊瑚礁的例子上。

If you were to go to most coral reefs today, you'd hear something like this.

你去看看现在大部分的珊瑚礁，会听见这样的声音。

But beyond our reef, a great danger is coming!

但在暗礁那端，可怕的危机即将来临。

We now know that because of that effort, our reefs are more resilient.

我现在知道，由于这些努力，我的珊瑚礁更有适应力。

One of the greatest threats to coral reefs is human expansion, or development.

对珊瑚礁最大的威胁之一人类的扩张开发。