| 单 |
dān liàn | single chain / refers to RNA as opposed to the double helix DNA |
| 单 |
Shàn | surname Shan |
| 单 |
chán | used in 单于 |
| 单 |
dān | bill / list / form / single / only / sole / odd number / CL:个 |
| 链 |
liàn | chain / cable (unit of length: 100 fathoms, about 185 m) / chain (unit of length: 66 feet, about 20 m) / to chain / to enchain |