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相关性和因果关系之间的区别不仅仅是学术上的——它可能具有深远的政策影响。
凡是在地方上做官的人,知道自己的职责吗?应该是百姓的仆役,而不是役使百姓的人
In the next decade, smart electric vehicles will completely change the way people travel.
The course of human life is not determined by drives or environment alone, but by creative self-direction as well.