英译中，来自翻译练习

·英译中：

原文：

Researchers say tracking changes in the height and weight of children across the world and over time is important because they can reflect the quality of nutrition available, and how healthy environments are for young people.

They found that in 2019, on average, children and teenagers in north-western and central Europe were the tallest in the world. Meanwhile, the 19-year-olds who were on average the shortest lived in South and South-East Asia, Latin America and East Africa.

译文：

研究人员表示，长时间追踪全球儿童和青少年的身高和体重变化非常重要，因为其数据能反映营养情况，以及生活环境对他们健康的影响。

2019年，欧洲西北和中部的儿童和青少年全球平均身高居首，而南亚、东南亚、拉丁美洲和东非等地的19岁青少年全球平均身高垫底。