这些区域确实改善了空气质量,而且科学表明,这意味着切实的健康收益——心脏病、中风和早产发病率降低,癌症、痴呆和哮喘等疾病的减少。
The zones do deliver some improvements to air quality, and the science tells us that means real health benefits—fewer heart attacks, strokes and premature births, less cancer, dementia and asthma.
脂肪组织中的番茄红素与心脏病的发病率降低有关。
Lycopene in fat tissue has been linked with a reduced risk of heart attack.
根据最新的27项研究,每天至少喝两杯牛奶可使结肠癌发病率降低22%。
Drinking two cups or more each day reduces the risk of developing colon cancer by 22 percent, according to a new review of 27 studies.
We'v e shown that learning optimism prevents depression and anxiety in children and adults, roughly halving their incidence over the next 2 years.
研究证实,乐观可帮助儿童和成人,预防抑郁和焦虑,使未来两年的发病率降低一半。
You have to test it by giving the vaccine to a large population of people, and then watching and seeing if you've reduced the incidence of the disease.
这样的测试的做法只能是,给大量人群分发疫苗,接着观察和了解,这种疾病的发病率是否有所降低
It dropped dramatically in the period from 1954-- this is these filled black bars refer to this axis, polio cases per 100,000 population dropped down to only three or four cases by 1956.
患病率在一九五四年后的,一段时间里急剧下降,该坐标轴上的这些黑色柱形图表明,到一九五六年,小儿麻痹症的发病率,已经降低至每十万人中仅三到四人发病
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