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。