CAI
abbr. 计算机辅助教学(computer-aided instruction 或 computer-assisted instruction);意大利登山俱乐部(Club Alpino Italiano)
例句
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。