The reason why the population becomes the "heavy burden" of the nation economy is the great population quantity, low population quality and insufficient development and use of human resource.
人口之所以成为国家经济的沉重包袱，根本原因是人口数量过多、人口素质低下、人力资源开发利用不足。
Second, the quality of population and cultural point of view, the transfer of surplus labor out of agriculture is generally low educational level.
二是从人口文化素质来看，转移出去的农业剩余劳动力文化水平普遍偏低。
The human population benefits greatly from poultry meat and eggs, which provide food containing high-quality protein, and a low level of fat with a desirable fatty acid profile.
禽肉和禽蛋对人类大有益处，为人类提供食物所含的高质量蛋白质，并且脂肪含量较低，脂肪酸含量较高。
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