PING jcut.edu.cn (61.136.197.234) 56(84) bytes of data.
64 bytes from 61.136.197.234 (61.136.197.234): icmp_seq=1 ttl=55 time=277 ms
64 bytes from 61.136.197.234 (61.136.197.234): icmp_seq=2 ttl=55 time=276 ms
64 bytes from 61.136.197.234 (61.136.197.234): icmp_seq=3 ttl=55 time=276 ms

--- jcut.edu.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 276.314/276.574/277.063/0.346 ms