纪录片《冰冻星球》 第78期 履于薄冰（10）

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Alun Hubbard is a glaciologist,

这些瀑布叫做冰川锅穴

studying the enormous power

冰河学家艾伦·哈伯德

of these waterfalls, which are known as moulins.

研究的便是它们的巨大能量

We've got this amazing moulin going off here today.

今天我们找到了这个非凡的冰川锅穴

The water's overflowing¹ from the lake, which is beginning to drain.

从湖里溢出来的水正在慢慢流干

Tonnes of water cas cading down this pipe that is, effectively,

无数吨的水从这里倾泻而下

plummeting² to the depths of the ice sheet through

相当于是从一千米高的冰川上

over a kilometre of vertical³ ice.

骤然跌落至冰原最深处

Alun is here to study where the melt water goes

艾伦来这里是为了研究这些水流去了哪里

and what effect it has on the remaining ice.

以及剩下的冰川会受到什么影响

To do that,

为此

he needs to find a moulin that has recently run dry.

他要找到一个刚流干的冰川锅穴

Just a week ago, there was

仅一个星期前 这里有一个

a three-mile long, ten-metre deep lake here.

三英里长 十米深的湖

The weight of all that water cracked the ice beneath

这些水的重量把下面的冰都压碎了

and the lake drained in just a few hours

湖水倾泻而出

with incredible force.

几小时内就流干了

1 overflowing   

n. 溢出物,溢流 adj. 充沛的，充满的 动词overflow的现在分词形式

参考例句：

• The stands were overflowing with farm and sideline products. 集市上农副产品非常丰富。
• The milk is overflowing. 牛奶溢出来了。

2 plummeting   

v.垂直落下，骤然跌落( plummet的现在分词 )

参考例句：

• Prices are rising, falling, going up, going down, shooting up, plummeting, etc. 物价在上涨、下跌、上升、下落、猛然上涨、骤然下跌等。 来自辞典例句
• The enemy plane went plummeting into the sea. 敌机直直掉进海里。 来自辞典例句

3 vertical   

adj.垂直的，顶点的，纵向的；n.垂直物，垂直的位置

参考例句：

• The northern side of the mountain is almost vertical.这座山的北坡几乎是垂直的。
• Vertical air motions are not measured by this system.垂直气流的运动不用这种系统来测量。