PING wut.edu.cn (61.183.139.116) 56(84) bytes of data.
64 bytes from 61.183.139.116 (61.183.139.116): icmp_seq=1 ttl=55 time=274 ms
64 bytes from 61.183.139.116 (61.183.139.116): icmp_seq=2 ttl=55 time=272 ms
64 bytes from 61.183.139.116 (61.183.139.116): icmp_seq=3 ttl=55 time=273 ms

--- wut.edu.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 272.984/273.627/274.861/0.872 ms