研究员依据六项指标对各国进行了评级：物质满足感；住房与环境；教育的完善程度；健康与安全；危险行为；学校生活的质量。
Researchers ranked countries on variables in six categories: material well-being; housing and environment; educational well-being; health and safety; risky behaviour; and quality of school life.
非学校教育是一种生活方式。与常规学校教育相比，非学校教育有很多优点。
Unschooling is a way of life that has many advantages over conventional schooling.
虽然，学校与家长多次教育我们，但是，在生活中的安全事件还是不时发生。
Though, the school and parents education we for many times, but, in the security incidents still occur from time to time in their lives.
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