短语讲解：
1. A new analysis of life expectancy around the world finds Americans are lagging behind other industrialized countries, and also identifies vast disparities within the United States itself.
life expectancy平均寿命
lag behind落后于
例句：Britain's economic development must lag behind that of almost every other industrial nation.
英国的经济发展肯定落后于几乎所有的其他的工业国。
2. He says increases in life expectancy have lagged in the United States compared with other countries.
compare with (把…)与…相比
例句：Compare the copy with the original.
把这副本与正本比较一下。
3. Mokdad says the reason is that America has made less progress in reducing risk factors that can shorten life, such as obesity and high blood pressure.
make progress前进,进步
例句：It was a long time before we seemed to make progress.
好长时间后，我们才似乎有了点儿眉目。
such as像, 例如
例句：We dislike people such as him.
我们不喜欢像他这号人。
high blood pressure高血压
4. Red and orange signify the shortest projected life span and those colors cluster together in the South.
life span寿命
例句：Modern medicine has increased man's life span.
现代医学延长了人的寿命。
5. That's the region where lower socioeconomic status and high rates of health risk factors; plus more limited access to quality medical care all contribute to shorter lifespans.
access to有权使用；到某地的通道
例句：I have access to his office.
我可以进出他的办公室。
contribute to促成
例句：Honesty and hard work contribute to success and happiness.
诚实加苦干有助于成功和幸福。
6. "Less education, less income in some of these rural counties, more likely to be smokers, more likely to be obese," Mokdad says.
be likely to可能; 倾向于; 很可能
例句：Many jobs are likely to be lost.
就业机会可能会大量流失。
7. And this is a long-term investment, like you build a school; you're going to see the impact of that school 20 years down the road.
be going to要,会,将要
例句：He is going to marry Jane.
他将与简结婚。
