杜克大学的研究使用身体质量指数测量肥胖，这是一个体重对身高的比率。肥胖的定义是身体质量指数在30或30以上。
The Duke study measured obesity using body-mass index, which is a ratio of weight to height. Obesity is defined as a BMI of 30 or more.
今天，她说，一半的孕妇超重或过度肥胖，在身高-体重比率，又称作肥胖指数上这被定义为30分或者更高。
Today, she said, half of pregnant women are overweight or obese, defined as a score of 30 or above on a height-weight ratio called the Body Mass Index.
体重指数是体重和身高的比率，通常用于肥胖测量。
BMI is a weight-to-height ratio commonly used in to gauge obesity.
应用推荐