Did you mean: dashu daoshi daishu daochu daoshou duoshu taoshu daoshua ?
| 倒数 | dào shǔ | to count backwards (from 10 down to 0) / to count down / from the bottom (lines on a page) / from the back (rows of seats) |
| 倒数 | dào shù | inverse number / reciprocal (math.) |
| 导数 | dǎo shù | derivative (math.) |