60%的美国人体重超重或有肥胖的问题。
Do you know that over 60% of Americans are overweight or obese?
他们多数是平均年龄在50岁的妇女,并且多数人体重超重。
Most were women with an average age of 50, and most were overweight.
如果一个人体重超标,减肥是解决诸多健康问题最根本最重要的策略。
If a person is overweight then losing weight is the essential strategy that will help them resolve a lot of health problems.
Like somebody, for example, who has got extremely low weight might be that, and that explains part of it.
比如说那些体重非常轻的人,这解释了部分原因
As we'll discuss in the class, and most of you probably know this, your body weight is a function of how many calories you take in and how many calories you burn off through metabolic processes but also physical activity.
我们将会讲到,而且你们中的大部分人可能也知道,你的体重随着卡路里的摄取量,和代谢中的消耗量而变化,还跟肢体活动有关
We take in a lot of food and water everyday, every year, and yet most of us our weight stays remarkably stable over that period of time for adults despite how much we eat and how much we drink.
日复一日年复一年,我们都摄入大量的食物和水,但我们绝大部分人的体重,在成年期都保持得很稳定,不管我们怎样大吃大喝
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