PING underground-www.xiantianan.cn (121.204.244.43) 56(84) bytes of data.
64 bytes from 121.204.244.43 (121.204.244.43): icmp_seq=1 ttl=113 time=293 ms
64 bytes from 121.204.244.43 (121.204.244.43): icmp_seq=2 ttl=113 time=292 ms
64 bytes from 121.204.244.43 (121.204.244.43): icmp_seq=3 ttl=113 time=292 ms

--- underground-www.xiantianan.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2610ms
rtt min/avg/max/mdev = 292.661/292.818/293.022/0.466 ms