| 改 | 
gǎi zhèng | to correct / to amend / to put right / correction / CL:个 | 
| 改 | 
gǎi | to change / to alter / to transform / to correct | 
|  正 | 
zhēng | first month of the lunar year | 
|  正 | 
zhèng | straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive |