《蒙古秘史》是研究蒙古历史最重要的原始文献之一，内容十分丰富。
The Secret history of the Mongols with its substantial content is the most important original document for the study of the Mongolian history.
《蒙古秘史》是研究蒙古历史最重要的原始文献之一，内容十分丰富。
The Secret history of the Mongols with its substantial content is the most important original document for the study of the Mongolian history.
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