Owens Valley farmland remains barren for decades.

欧文斯谷的农场因此荒废了几十年

But in the 1990s, LA authorities begin the long process of restoring it.

但上世纪90年代，洛城当局启动了长期的重建计划

It's always been true that if you want something great,

不入虎穴焉得虎子

you may have to give up something great to get there.

这是亘古不变的真理

We've sacrificed our blood and treasure for just about every great thing in America.

我们挥洒着自己的鲜血与财富成就着美国一个又一个的奇迹

The Los Angeles Aqueduct remains one of America's most ambitious engineering efforts.

洛杉矶引水渠是美国历史上最具野心的工程之一

When they built the aqueduct to bring water down across an entire state,

他们建成了水渠，将水引向整个加州

what a feat that was and how it so fundamentally changed a whole part of the state of California.

这是多么伟大的功绩啊，它又是如此彻底地改变了整个加州的面貌

And when you fly over California now,

每当乘飞机掠过加州上空

I always look out the window and I look down,

我总会透过窗子，俯瞰外面的景色

you can see that glittering silver ribbon that runs the entire length of the state.

将会看到它有如一条闪闪发光的银丝带，跨越整个加州徐徐飘扬

It was always just magical to me.

在我眼里它总是那么梦幻

1914.The aqueduct is a year old.

1914年，引水渠建成一周年

America is booming.

美国的繁荣仍在继续

World War I creates massive demand for weapons, cars and oil.

一战的打响，极大地刺激了对武器、汽车和原油的需求

In just four years, the economy doubles.

仅仅四年间，美国经济翻了一番

America is poised to become the richest nation on earth.

美国眼看就要成为世界上最富有的国家

Three generations from the end of slavery,

奴隶制瓦解后的三代南方黑人

black Southerners are on the move in search of a better life.

开始向北迁移以谋求更好的生活

Between 1915 and 1930,one and half Million head north--

在1915到1930年之间，150万南方黑人向北进发

one in seven of the entire African-American population of the US.

这个数目占到了全体非裔美国人口的七分之一

It's called the Great Migration.

这场运动被称为大迁移

The North represented the promised land, to blacks in the South.

北方在南方黑人的眼中象征着"应许之地"

If you can go North, you can work.

只要你到北方去就会有工作

If you can go North,you're not going to have to step off the curb when whites walk down the block.

只要你到北方去，当你在路上碰到白人时，你不必再卑微地闪到一边

If you can go North,you can live in better neighborhoods and your children get a better education.

只要你到北方去，你就能住上好一点的街区，你的孩子就能受到更好的教育

Many head for the Ford plant in Detroit.

很多人都进了底特律的福特汽车厂

Ford is unique in paying black and white workers the same,a staggering $5 a day,

只有福特给他们的薪水与白人同等，日薪惊人地高达5美元

five times more than a sharecropper's wage in Georgia.

比佐治亚州的一个佃农多出五倍

But equal pay doesn't mean equal treatment.

但同等薪酬并不意味着同等待遇