PING www.buyair.cn (121.198.212.80) 56(84) bytes of data.
64 bytes from 121.198.212.80 (121.198.212.80): icmp_seq=1 ttl=46 time=237 ms
64 bytes from 121.198.212.80 (121.198.212.80): icmp_seq=2 ttl=46 time=235 ms
64 bytes from 121.198.212.80 (121.198.212.80): icmp_seq=3 ttl=46 time=235 ms

--- www.buyair.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 235.832/236.577/237.997/1.150 ms