为何我们比韩国人日本人长得慢？

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调查发现，虽然中国人的身高一直在增长，但是我们的生长率却比不过韩国日本。问题到底出在哪里？

A recent survey found that the average human growth rate in China is lower than that in Japan and South Korea. Experts explained that besides genes, diet, physical activity and sleep can also influence height and growth.最近调查发现，中国人的平均生长率低于日本和韩国。专家解释，除了基因、饮食，运动和睡眠也会影响身高和生长。

The average height of males and females in South Korea is 174.92 centimeters and 162.34 centimeters respectively, ranking first among the three countries, according to a report done by Imperial College London. Among the three countries, China ranked second and Japan ranked third.
根据伦敦帝国理工学院的报告显示，韩国男性和女性的平均身高分别是174.92厘米和162.34厘米，在三个国家中排名第一，中国则排第二，日本排第三。
Data also showed that males in the other two countries grow faster than males in China. South Korea ranked third on the list and Japan fifth. Though Chinese people have been growing increasingly taller over the past century, their growth rate still lags behind that of other countries.数据还显示出韩国和日本的男性比中国的男性生长得快。韩国排名第三，日本第五。虽然中国人经过几个世纪，身高一直在不断增高，但是生长率依然落后另这两个国家。
Lu Dajiang, a Shanghai-based expert on the physical condition of students, believes that there are three primary factors to consider: diet, physical activity and sleep.卢大江（音译）上海学生身体健康专家，认为有3个基本的原因需要考虑：饮食、身体锻炼和睡眠。

Milk provided periodically during classes ensures that Japanese students consume a sufficient amount of calcium（钙）. Indeed, various ingredients（成分） in typical Japanese meals ensure that Japanese students receive all kinds of nutrients（营养物）. 
课间定期提供的牛奶能确保日本的学生们摄入足量的钙质。事实上，日本的料理里的各种食材能确保日本的学生们吸取丰富的营养。
What’s more, in both Japan and South Korea, students have a passion for sports. Each student has a favorite sport that he or she practices on a regular basis.另外，日本和韩国的学生们对运动有着很大的热情。每一个学生都有一项自己最喜欢又经常锻炼的运动。

Experts recommended that China take note of its neighbors’ success in diet and exercise. Meanwhile, one more thing to pay attention to is how many hours of sleep students get. Students should go to bed before 9 p.m. and get 10 hours of sleep per night.
专家建议，中国应该留意邻国在饮食和运动方面的成功。同时，还需要注意的问题是，学生们的睡眠时间有多长。学生们应该在晚上9点之前睡觉，每晚需要10个小时的睡眠时间。
本文来源：爱语吧

重点词汇calcium  ['kælsɪəm]  n. [化学] 钙
ingredient  [ɪn'griːdɪənt]  n. 原料；要素；组成部分adj. 构成组成部分的
nutrient ['njuːtrɪənt]n. 营养物；滋养物adj. 营养的；滋养的

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