In the physical world, this extra knowledge is often held in the role of an architect.
在物理世界中，这类衍生性的知识常常是被构架师这类的角色所掌握的。
Last week, our school held a competition of environmental protection knowledge.
在上周，我们学校举行了环保知识竞赛。
Migrants had limited knowledge on TB and they held different attitude to free treatment policy.
结果发现，流动人口对结核病相关知识和免费治疗政策了解有限，看法不一。
Migrants had limited knowledge on TB and they held different attitude to free treatment policy.
结果发现，流动人口对结核病相关知识和免费治疗政策了解有限，看法不一。
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