About 13 percent of all live births in the United States are preterm, meaning the baby is born before the 37th week of pregnancy, according to the Centers for Disease Control and Prevention.

在美国约有13%的存活产婴儿是早产，这意味着在婴儿是怀孕37周之前出生的，根据美国疾病控制和预防中心的一项调查显示。

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The study showed that people who drink every day and consume about 3 bottles of wine a week are at a greater risk of serious liver disease than those who drink lots in one go but then take breaks.

研究表明，比起偶尔酗酒的人，每天喝酒并且一周喝掉大约3瓶酒的人患严重肝脏疾病的风险更大。

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In the final week of his life the disease kept him awake in a semi-conscious state nearly twenty-four hours a day. As he dreamed, he'd talk out loud about what he was dreaming.

离世前一个星期，这个病使他一天二十四小时都在半昏迷状态中•他作梦的时候，常大声说出他所梦见的。

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This week,we will tell about what is said to be the largest study yet of a treatment for Parkinson's disease.

VOA: special.2009.02.03

But those who ate two or more servings of brown rice a week had an eleven percent reduced risk of getting the disease.

VOA: special.2010.06.30

By the middle of last week, 510 cases of the disease had been diagnosed and 27 youngsters were in hospital.

CNN: In the Grip of a Virus

Grove Farm, Botesdale, Suffolk, close to the first infected site, was upgraded to a slaughter on suspicion of having the disease last week after dozens of birds were found dead by officials.

BBC: RELATED BBC SITES

In the study researchers from Harvard School of Public Health found that even just eating 1 to 2 servings of fish a week reduced the risk of death from heart disease by 36 percent, and overall death by 17 percent.

CNN: Seafood benefits outweigh risks, government says