PING underground-m.yk52.cn (154.212.193.214) 56(84) bytes of data.
64 bytes from 154.212.193.214 (154.212.193.214): icmp_seq=1 ttl=54 time=226 ms
64 bytes from 154.212.193.214 (154.212.193.214): icmp_seq=2 ttl=54 time=225 ms
64 bytes from 154.212.193.214 (154.212.193.214): icmp_seq=3 ttl=54 time=224 ms

--- underground-m.yk52.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 224.591/225.505/226.399/0.833 ms