PING underground-hao.crystalinter.cn (38.14.78.251) 56(84) bytes of data.
64 bytes from 38.14.78.251 (38.14.78.251): icmp_seq=1 ttl=57 time=143 ms
64 bytes from 38.14.78.251 (38.14.78.251): icmp_seq=2 ttl=57 time=141 ms
64 bytes from 38.14.78.251 (38.14.78.251): icmp_seq=3 ttl=57 time=141 ms

--- underground-hao.crystalinter.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 141.205/141.932/143.265/1.038 ms