All the data and materials come from real practices, which are very helpful for practice.

本文中的所有数据和资料均来源于实践，从而对实践具有很高的指导价值。

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Private information is all the private data and materials.

私人信息，是所有的个人情况、资料。

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Private information is all the private data and materials.

私人信息，是所有的个人情况、资料。

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