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As a nutritionist, I've spent my career
作为营养学家 我一直在研究
researching how what we eat determines what we are.
我们摄入的食物如何影响我们自身
Of course, we now know that eating the right kind of food
当然 我们现在知道合理摄入食物
is crucial for good health,
对健康至关重要
but it's only relatively recently we've taken that as read.
但只在不久前 我们才开始将其奉为真知
The greatest impact of the change in
当今社会普遍的肥胖症
our eating habits is the modern-day epidemic of obesity.
就是我们饮食习惯变化后最显著的影响
In just a couple of generations, we've gone from suffering from
仅仅过了几代人 我们就从
the diseases of poverty
因挨饿饱尝病痛
to being afflicted by the diseases of excess.
走向因饮食无度而疾病缠身
But it's surprising how
但令人惊讶的是
long it's taken scientists to understand the
科学家们花了这么长时间
true causes of obesity and
才弄清我们的饮食习惯
the real connection to our eating habits.
与肥胖的成因实际上有何种联系
Since it was launched on the airwaves 45 years ago,
自四十五年前开播以来
Horizon has attempted to understand this connection too,
地平线栏目一直致力于了解两者的联系
and has charted science's
同时记录下科学手段
attempts to change how our food is produced,
尝试改变食物生产方式的种种努力
initially to combat the real problem
以及与人口爆炸式增长
of an exploding population with not enough to eat
带来的食品匮乏问题展开的搏斗
as well as trying to unearth how and why
同时试图揭开这些变化为何 及怎样
these changes have impacted so disastrously on our health.
对我们的健康造成如此灾难性的影响

重点解释

In just a couple of generations, we've gone from suffering from the diseases of poverty仅仅过了几代人我们就从因挨饿饱尝病痛

a couple of: 几个

He patched up a couple of old tires.

他补了几条旧车胎。

The bowler let go a couple of scorchers.

投球手投出了几个快球。

suffer from:遭受； 因 ... 而蒙受损害

The crops suffered from frequent blights.

农作物经常遭受病虫害。

She is suffering from unspeakable pain.

她在遭受难以形容的痛苦。

Since it was launched on the airwaves 45 years ago,Horizon has attempted to understand this connection too,自四十五年前开播以来地平线栏目一直致力于了解两者的联系

launch on:开始

A new device was set to launch on the mobile phone market.

一个新的设备首次在移动电话市场推出。

The project was launched on a crash basis.

此计划作为最优先项目而付诸实施。

attempt to:企图, 努力

I would be the last to attempt to answer the question.

我是最不可能去尝试回答这个问题。

I made no attempt to make friends with her.

我没有打算要和她做朋友。

Of course, we now know that eating the right kind of food is crucial for good health,当然我们现在知道合理摄入食物对健康至关重要

crucial的用法:

1.crucial的表示“决定性的”，常是在两个决定或假想中最终决定为关键的；

2.crucial to 后面接名词或者名词性成分。

These negotiations are crucial to the future of our firm.

这些谈判对我们公司的前途至关重要。