PING underground-www.shiyijidian.com (208.98.40.21) 56(84) bytes of data.
64 bytes from 208.98.40.21: icmp_seq=1 ttl=59 time=150 ms
64 bytes from 208.98.40.21: icmp_seq=2 ttl=59 time=150 ms
64 bytes from 208.98.40.21: icmp_seq=3 ttl=59 time=150 ms

--- underground-www.shiyijidian.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 3830ms
rtt min/avg/max/mdev = 150.456/150.539/150.670/0.093 ms