英语听力：自然百科 大堡礁 自然奇迹(19)（在线收听）

There are many endurings mysteries about the great barrier reef,particularly at night,but this is one of the more enchanting ones.

大堡礁有着无数的未解之谜，尤其是它的傍晚，而待会儿见到的则是最为魔幻的一个未解之谜。

Watch this.

注意看。

This coral is fluorescing under ultraviolet light,it's this amazing light show,and it covers pretty much the whole of the reef crest.

珊瑚在紫外线照射下变得荧光闪闪，简直是奇妙的灯光节日。荧光基本上布满了整个珊瑚礁的顶部。

Look at this,vivid,vivid colors,it doesn't look real,it looks like some bizarre,sort of is what it looks like.

看看这个，多么生动鲜明的颜色呀。简直不像真的，感觉更像是某种奇异的西兰花。

One theory is that this magical colors are in some way caused by the coral's sunscreen.

有理论认为这些魔幻般的色彩可能是珊瑚虫分泌的遮阳剂造成的。

But dispite lots of very clever people looking into it,no one really knows why this happens.

虽然许多专家在不断地研究这个问题，但至今还没有人确切地知道这是怎么一回事。

And the same goes for much of the night time activities here.

这里的夜生活也充满奇幻色彩。