创新无界：政府官员蔡伦（英汉双语）(Think Different)书评_中英双语在线阅读

蔡伦

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Cai Lun developed a new material for writing. He did something that changed not only China but also the whole world。

Without this form of paper, we would be unable to write and communicate so conveniently today。

2023-11-05

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