You can change it less once, but you should walk more:
6 → 125
The whole journey takes about 2 hours, 10 minutes /28.2 kilometers.
Xiangya Third Hospital goes straight west to the intersection of Jinxing Middle Road, and further south. Take bus No.6 at Teachers' Village Station, pass through 17 Station, get off at Dong Tang East (Changsha Unicom) Station, get off and walk 50 meters to Dong Tang East Station, then transfer to 125 Bus, pass through 29 stops and get off at Changsha Ecological Zoo Station.
The other is to turn it again.
9 13 air conditioner → 804 outer ring air conditioner → 125 air conditioner.
The whole journey is about 2 hours and 20 minutes /30.0 km.
Take air conditioner 9 13 at Xiangya Third Hospital Station, take bus No.3, get off at the prefabricated station, change to air conditioner 804, take bus No.24, get off at the North Station of Hunan Second People's Hospital, change to bus No.0/25, take bus No.25, and get off at Changsha Ecological Zoo Station.
109 → 804 outer ring air conditioner → 125.
The whole journey takes about 2 hours and 20 minutes /29.9 kilometers.
Take bus 109 at Xiangya Third Hospital Station, bus No.4, get off at Xuanyinqiao Station, transfer to 804 outer ring air conditioner, take bus No.23, get off at North Station of Hunan Second People's Hospital, transfer to bus 125, take bus No.25 and get off at Changsha Ecological Zoo Station.
Thanks for adoption