六级Katherine Flegal and colleagues at the US National Center for Health Statistics in Hyattsville, Maryland, have calculated that people kicking the habit have been responsible for a small but significant portion of the US epidemic of fatness.
马里兰州凯悦斯维尔的美国国家健康统计中心的Katherine Flegal和同事们计算出,在美国肥胖流行的一小部分原因是人们养成了这种习惯。
2008年12月英语六级真题
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