常速英语:Premature Babies Have Higher Death Rates in Young Adulthood

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短语讲解：

1. But does early birth have an impact on health when those babies grow up?

have an impact on对…有影响;对…起作用,产生效果
例句：The computer have had a great impact on modern life.
计算机对现代生活产生了巨大的影响。
grow up长大, 成熟
例句：Tom wants to be a coach when he grows up.
汤姆长大后想当教练。

2. To find out, Stanford University researcher Dr. Casey Crump and his colleagues used a database of 670,000 people born in Sweden in the 1970s.

find out发现, 看穿, 揭发
例句：We must find out the truth of the matter.
我们必须弄清楚事情的真相。

3. And that was due to various causes, including respiratory and endocrine and heart disease - conditions that may have cumulative health effects that don't manifest until young adulthood.

due to由于，因为
例句：Her absence is due to illness.
她因病缺席。

4. And also, for survivors of preterm births to avoid other risk factors for disease, like smoking or obesity, in order to offset the increased risk that we found.

in order to为了
例句：We started early in order to arrive before dark.
为了在天黑前到达,我们很早就动身了。