Docker has dns configured but cannot access the domain name site

  docker, question

My ..dockerThe default domain name server is configured, but after running, it canpingthroughipAddress, but notpingDomain name website. What should I do?

$ ps -ef | grep docker
 root      1130     1  0 17:32 ?  00:00:10 /usr/bin/docker daemon -H fd:// --dns=61.139.2.69 --registry-mirror=https://44mfwmrx.mirror.aliyuncs.com
 
 $ docker run -it --dns=61.139.2.69 centos
 [root@c3b7344feace /]# ping  61.135.169.125
 PING  61.135.169.125  ( 61.135.169.125 ) 56(84) bytes of data.
 64 bytes from 61.135.169.125: icmp_seq=1 ttl=54 time=46.1 ms
 64 bytes from 61.135.169.125: icmp_seq=2 ttl=54 time=45.2 ms
 64 bytes from 61.135.169.125: icmp_seq=3 ttl=54 time=45.7 ms
 ^C
 ---  61.135.169.125 ping statistics ---
 3 packets transmitted, 3 received, 0% packet loss, time 2002ms
 rtt min/avg/max/mdev = 45.246/45.686/46.109/0.393 ms
 
 [root@c3b7344feace /]# ping -c 2  www.baidu.com
 ping: unknown host  www.baidu.com

There may be these two problems:
1. There is a problem with DNS resolution settings
2. Analysis Delay