So I think that's interesting that now they are thinking what they know and they are learning something different.

孩子们现在回想,他们熟悉的事物,同时学习一些新的知识。

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These are the reasons why I examined their experience and I trust why you are thinking about learning about it. Thank you.

这就是为什么我痴迷于研究这段历史,而且我也相信,你们也想了解这段历史,谢谢

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