纪录片《我们的地球》 第64期 洞穴迷宫(03)

Insects seem irresistibly¹ drawn² towards the source and then get trapped by the sticky lines.

昆虫总是禁不住光源的诱惑，结果就被这些粘乎乎的丝拿住了

Once stuck, there is no escape.

一旦被粘住，根本没有脱逃的机会。

Now it's just a matter of reeling in the line and slowly consuming the catch alive.

现在，它只需收起丝线，然后慢慢吃掉尚且活着的猎物。

By ensnaring the insects that hatch in this cave,

通过诱捕洞穴内羽化的昆虫

these glow-worms have solved the biggest challenge

这些萤火虫成功地解决了终生穴居动物面临的最大难题

that permanent cave-dwellers face, finding a regular and reliable source of food.

即找到长期而可靠的食物资源

One kind of rock makes this whole underground world possible, limestone³.

这些地底世界之所以会存在，都是因为一种岩石，石灰岩。

Most of the world's caves are found within it and it covers nearly 10% of the Earth's surface.

世界上大部分洞穴内都存在石灰岩，它覆盖了地球表面将近10%的面积。

Limestone is composed of minerals derived⁴ from marine⁵ shells and corals.

石灰岩由海螺和珊瑚中的矿物沉积后形成

So although this rocky escarpment in the United States

所以，尽管美国境内的这座石壁，

is now hundreds of metres above sea level, it was actually formed underwater.

如今矗立在海平面以上几百米高的地方，它实际上却是在水下形成的。

1 irresistibly   

adv.无法抵抗地，不能自持地；极为诱惑人地

参考例句：

• Her gaze was drawn irresistibly to the scene outside. 她的目光禁不住被外面的风景所吸引。 来自《简明英汉词典》
• He was irresistibly attracted by her charm. 他不能自已地被她的魅力所吸引。 来自《简明英汉词典》

2 drawn   

v.拖，拉，拔出；adj.憔悴的，紧张的

参考例句：

• All the characters in the story are drawn from life.故事中的所有人物都取材于生活。
• Her gaze was drawn irresistibly to the scene outside.她的目光禁不住被外面的风景所吸引。

3 limestone   

n.石灰石

参考例句：

• Limestone is often used in building construction.石灰岩常用于建筑。
• Cement is made from limestone.水泥是由石灰石制成的。

4 derived   

vi.起源；由来；衍生；导出v.得到( derive的过去式和过去分词 )；（从…中）得到获得；源于；（从…中）提取

参考例句：

• Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
• He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》

5 marine   

adj.海的；海生的；航海的；海事的；n.水兵

参考例句：

• Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
• When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。