PING tcgsl.cn (140.188.35.139) 56(84) bytes of data.
64 bytes from 140.188.35.139 (140.188.35.139): icmp_seq=1 ttl=121 time=153 ms
64 bytes from 140.188.35.139 (140.188.35.139): icmp_seq=2 ttl=121 time=152 ms
64 bytes from 140.188.35.139 (140.188.35.139): icmp_seq=3 ttl=121 time=152 ms

--- tcgsl.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 152.509/152.771/153.206/0.309 ms