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今天，蔡伦在中国被视为民族英雄。
Today, Cai Lun is considered a national hero in China.
youdao
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蔡伦对人类最大的贡献是发明了纤维纸及其造纸术。
He made great contribution to humankind for his invention of paper-making technique.
youdao
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是蔡伦发明的。
Cailun is credited for its invention.
youdao
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是蔡伦发明的。
Cailun is credited for its invention.
youdao