PING ec-study.cn_shyujie.com.cn_www.ai8178.com (107.149.106.221) 56(84) bytes of data.
64 bytes from 107.149.106.221 (107.149.106.221): icmp_seq=1 ttl=121 time=158 ms
64 bytes from 107.149.106.221 (107.149.106.221): icmp_seq=2 ttl=121 time=158 ms
64 bytes from 107.149.106.221 (107.149.106.221): icmp_seq=3 ttl=121 time=158 ms

--- ec-study.cn_shyujie.com.cn_www.ai8178.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2354ms
rtt min/avg/max/mdev = 158.238/158.495/158.979/0.472 ms