历史讲的是过去的事情，从某种意义上来说，历史并不存在于脑中-就是说，你看不到过去的事情；但是学习历史能使你得到并增强理解不在眼前的事物的能力。
In a sense, it does not exist in our brain, which means that you can not see the past things, but you can obtain and strengthen the ability to understanding the invisible things by learning history.
论文第一章是学习的生存论意义的历史演化。
The first chapter is on the history of existentialism meaning of learning.
研究个体网络学习中的历史记录，无论对于学习者的学习反思，还是教育者的教学研究，都具有重要意义。
It has great significance to study history record in E-learning for learning introspection, also for teaching research.
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