n. 计算机辅助教育,计算机模拟输入
网络 计算机辅助教学(computer-assisted instruction); 辅助教学(Computer-Aided Instruction); 蔡
This all changed, thanks to an man named Cai Lun.
幸得一个叫蔡伦的人,这一切都改变了。
1,900 years ago, Cai Lun improved the paper-making process.
1900年前,蔡伦改进了造纸工艺。
Paper was first invented about two thousand years ago in China by Cai Lun.
大约两千年前,中国的蔡伦首次发明了纸。
With Cai Lun´s papermaking method, Chinese culture grew more rapidly over the next several centuries.
有了蔡伦的造纸法,中国文化在接下来的几个世纪里发展得更加迅速。
Cai Lun began experimenting with many different materials and different methods to turn those materials into paper.
蔡伦开始尝试许多不同的材料和不同的方法来把这些材料变成纸。