to interpret and make glossaries and commentaries on classic texts
训诂学
xùn gǔ xué
study of classic texts, including interpretation, glossaries and commentaries
徐铉
Xú Xuàn
Xu Xuan (-991), author of commentaries on Shuowen Jiezi 說文解字註|说文解字注[Shuo1 wen2 Jie3 zi4 Zhu4]
春秋三传
Chūn qiū Sān Zhuàn
Three Commentaries on the Spring and Autumn Annals 春秋[Chun1 qiu1], including Mr Gongyang's annals 公羊傳|公羊传[Gong1 yang2 Zhuan4], Mr Guliang's annals 穀梁傳|谷梁传[Gu3 liang2 Zhuan4] and Mr Zuo's annals or Zuo Zhuan 左傳|左传[Zuo3 Zhuan4]