究其原因，有系统内部或自身“先天不足”、“营养不良”、“自闭”倾向等，解决之道是系统优化。
Within the system or their own have "deficiencies", "malnutrition", "autistic" tendencies and other reasons, the solution is system optimization.
要教导不识字的人们了解健康之道、生育间隔的优点、增加作物产量的方法、注重子女的饮食营养乃至于如何谋生，都非常不容易。
It is very difficult to teach illiterate people the paths to good health, the advantages of family spacing, the way to increase crop yields, nutrition for their children, and how to earn a living.
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