Chou Collection, Middle Volume. Radical: Earth (tǔ). Kangxi strokes: 9. Page 228, Entry 08. Pronounced duo. Shuowen Jiezi (Explanation of Words and Phrases): A hall or schoolroom. Yupian (Jade Chapters): An archery butt or mound. Tang Liudian (Six Statutes of the Tang Dynasty): In the military examination system, there is a requirement for archery at a distance using a long butt. Also, in the Wu dialect, the left and right sides are referred to as duo tou. Also, the name of a mountain. The Sheduo Mountain is located southeast of Jingxing. Qin Wang Jian attacked Zhao and established an archery butt here, which is why it is named as such. Commonly pronounced as tuo.