And again,it is two-fold: one is,we want to help our colleagues in Mexico, but it does have an impact on safety and security in the United States."

VOA: standard.2009.03.24

One of the initial things that Keyes found is that there was as much as a ten-fold difference in rates of coronary disease.

凯斯首先发现的其中一项结果是,七个国家的冠心病发病率

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选