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Files are the real reflection of nature, society and human mental activities.
档案是自然、社会和人类思维活动的真实反映。
youdao
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Blood is also the material basis of mental activities.
血液也是精神活动的物质基础。
youdao
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Blood is also the material basis of mental activities.
血液也是精神活动的物质基础。
youdao