PING www.flowerkm.com.cn (104.21.39.155) 56(84) bytes of data.
64 bytes from 104.21.39.155 (104.21.39.155): icmp_seq=1 ttl=60 time=6.45 ms
64 bytes from 104.21.39.155 (104.21.39.155): icmp_seq=2 ttl=60 time=4.42 ms
64 bytes from 104.21.39.155 (104.21.39.155): icmp_seq=3 ttl=60 time=4.49 ms

--- www.flowerkm.com.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.424/5.122/6.450/0.942 ms