Add the bellow nodes to conf file and resyn wallets from the begin.
connect=j5um2tvq6mzvzaot.onion:17570
connect=ifj33oznxhvkg3wi.onion:17570
connect=s7gw4sppbuihqnep.onion:17570
after full syn replace the connect command with addnode
China blocks the tor, how to sync in chian?
Use a VPN to connect into the tor network i guess.
Im not sure about the legality of VPN's in china, but if your ISP blocks access to tor network, you can just access it via VPN's for sure.
Vpn helps to get access to blocked sites, but still fail to get the wallet sync. Seems vpn only works for internet surfing, but not work for sofeware with tor integrated.