BMI is a measure of weight relative to height, with different ratios falling into " underweight, " " normal weight, " " overweight, " and " obese" ranges.

BMI 是以体重和高比计算出的数值，并以 “过轻”、“正常”、“过重” 和 “肥胖”等范围定义不同数值。

They may be underweight and may have no access to health care so measles is a big killer, he said.

他们可能会体重不足，而且可能无法接受医疗服务，因此麻疹相当致命。"

And if somebody is very thin, you can call them underweight, skinny, bony, if you can see their bones.

同时，如果某人，你可以看到他们的骨头，那么你可以称其为体重不足的、皮包骨的、骨嶙峋的。

Both these animals came in really underweight and emaciated.

这两只海豹一开始都很弱。

Around 80 percent come in underweight and need fattening up.

大约80%的企鹅体重过轻，需要增肥。

OK — well, here goes. Which country banned the use of underweight models in 2013? Was it a) Israel? b) Canada? or c) the US?

好。问题来了。2013年哪个国家禁止体重过轻的模走秀？是 a)以色列？b)加拿大？还是c)美国？

Fasting might not suit those who are underweight or with a long-term medical condition.

禁食可能不适合那些体重过轻或患有长期疾病的人。

In part, that's because newcomers arrive exhausted and underweight.

部分原因是新来者在刚加入时处于疲惫状态，而且体重很轻。

Dr. Jason Fung points out here that as early as 1921 and in the 1930s, insulin was used specifically as a " fattening agent" to help chronically underweight children and pathologically underweight patients gain weight.

Jason Fung 医生在此指出早在 1921 年及上世纪 30 年代，胰岛素便被作为一种“增肥剂”，用于帮助那些体重过轻的儿童以及病理性体重过轻的病人增重。

About a fourth of the world's underweight people live in India and Bangladesh.

约四分之一的全球体重过轻人口分布在印度和孟加拉国。

The doctor told me my baby was underweight.

医生告诉我，我的宝宝体重过轻。

People with bulimia are usually normal weight or overweight, whereas people with anorexia are underweight.

暴食症患者通常体重正常或超重，但厌食症患者是体重过轻者。

He noted that some countries have many underweight people, meaning the nations are facing what he called a " double burden" of nutrition problems.

他指出，一些国家有许多体重过轻的人，这意味着这些国家正面临他所说的营养问题的“双重负担”。

In fact, more of us now live in countries where obesity is a greater risk to our health than being underweight.

事实上，在我们大多数人生活的国家里，肥胖比体重过轻对健康的危害更大。

Some of the children are already in a World Food Program effort that feeds extremely underweight children and breastfeeding mothers.

一些儿童已经是世界粮食署喂养体重超轻儿童和哺乳母亲的帮助对象。

Ninety-nine percent of the children attending a school in a coal-mining area of the country reportedly were underweight.

据报道，在该国一个煤矿区上学的孩子中，99%体重不足。

And Subu Subramanian says, the percentage of underweight children has changed little since the the early 1990s.

苏布·苏布拉马尼安说，自20世纪90年代以来体重不足儿童比例几乎没什么变化。

Doctors use height, weight and age to measure whether a person is underweight, normal, overweight or obese.

医生用高、体重和年龄来衡量一个人是体重不足、正常、超重或肥胖。

She told me she had found 10 dead hedgehogs, and others out in the day and underweight.

她告诉我，她发现了10只死去的刺猬，还有一些在白天出现且体重不足。

OK. Well, I asked you which country banned the use of underweight models in 2013? Was it a) Israel b) Canada or c) the US?

好的。我的问题是2013年哪个国家禁止体重过轻的模走秀？是 a)以色列？b)加拿大？还是c)美国？