First let's talk about cancer.
首先我们来谈谈癌症。
Steven Moore of the National Cancer Institute led a team of researchers to study more than 1.4 million people.
美国国家癌症研究所的史蒂芬·摩尔（Steven Moore）领导的研究团队对140多万人进行了研究。
______________________________. These people reported on their physical activity between 1987 and 2004. The researchers looked at the occurrence of 26 kinds of cancer among the participants during, on average, the next 11 years.
____________________________。这些人在1987年到2004年期间汇报了他们的身体活动情况。研究人员查看了这些参与者在接下来平均11年期间26种癌症的发生情况。
