你只能读到它在古代文献。
中国古代文献中坎儿井的概念：神话还是现实？
The Karez Concept in Ancient Chinese Sources Myth or Reality?
其历史悠久，在古代文献中(汉文或蒙古文)有所记载。
They have a long history and were recorded in Chinese or Mongolian medical works.
他是研究中国古代天文学文献的专家。
He was an expert on ancient Chinese astronomical literature.
准确地阐释语义是古代汉语文献教学的重要内容。
Paraphrasing precisely plays an important part in teaching ancient Chinese literature.
书信是研究古代两河流域文明的重要文献。
Correspondence is an important material to the study of ancient Mesopotamian civilization.
书信是研究古代两河流域文明的重要文献。
Correspondence is an important material to the study of ancient Mesopotamian civilization.
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