雪变成冰

On this ice cliff you can actually see

在这个冰崖，你能清晰看到

the transformation of snow into ice as it happens.

雪变成冰的过程

Each year's snowfall creates distinct layers many feet deep.

每年的降雪都造成明显的雪层，许多数米厚

Now, above me is the fresh snow from this winter,

现在，在我上方是今年新下的雪

and down here, this brown line is the melt from the summer before.

接下来，看这些褐色线，是夏天前融化的

So as you go down through these layers, the snow gets older and older.

所以你越深入观察这些雪层，雪堆积的时间越久远

It's kind of like the rings of a tree

就像树的年轮

with each layer being a new layer of snowfall,

老雪层被新雪层套着

and it's the weight of all those snowfalls building up

所有这些雪崩的重量

that starts to compress the individual snowflakes together.

是由独立的雪花压缩而成的

The further down the layers you go,

越往下接触的雪层就

the harder the snow becomes until you reach here.

越硬，到了这里

This is a really distinctive set of snow.

这是很特别的雪

It's called neve and it formed several years ago.

叫做粒雪，数年前形成

It's really hard, I mean, I have to dig at it with my ice axe.

这真的很硬，我用冰镐挖它

It's amazing stuff. It's kind of Like a bubbly fibreglass.

这是神奇的聚集物就像气泡玻璃纤维

It's beautiful.

真漂亮

重点讲解

1、transformation

转换;改变;改造

Your metabolic rate is the speed at which your body transforms food into energy.

新陈代谢率是身体把食物转换为能量的速度。

Delegates also discussed transforming them from a guerrilla force into a regular army.

代表们还讨论了把他们从游击队武装改造为正规军的问题。

改善;使改观;使改头换面

The Minister said the Urban Development Corporation was now transforming the area.

部长声称城市开发公司如今正使该地区改头换面。

A cheap table can be transformed by an interesting cover

一块趣味盎然的桌布就能使一张廉价桌子面目一新。

2、build up

（使）积聚；（使）逐渐增加

The regime built up the largest army in Africa.

该政权逐渐建立起一支非洲规模最大的军队。

The collection has been built up over the last seventeen years.

在过去的17年中，收藏的规模不断扩大。

增强…的体质；建立…的信心

Build her up with kindness and a sympathetic ear.

用友善和富有同情心的倾听来重拾她的信心。

Dr. Johnson and I have been trying to build him up physically.

约翰逊医生和我一直试图增强他的体质。

吹捧；抬举

The media will report on it and the tabloids will build it up.

媒体会报道此事，小报则会大肆吹捧。

Historians built him up as the champion of parliament.

历史学家把他誉为议会的捍卫者。