According to Popkin, 1.3 billion people are overweight while 800 million are underweight.
根据波普金的调查,全球有13亿人超重,而只有8000万人体重偏轻。
Doctors use the different percentiles on a chart to decide whether teenagers or children are underweight or overweight.
医生通过图表中不同的百分点,来判断青少年的体重是过重还是过轻。
Sometimes weight gain can be a good thing for infants who are underweight, but for others, it could be a risk factor for developing childhood obesity.
对于那些体重不足的婴儿来说,体重增加将是一件好事,但对于其他孩子来说,体重增加则是发生儿童性肥胖的风险因子。
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