Docker容器中apt-get无法解析URL但wget可正常解析的问题求助

大家好，我遇到了一个特别奇怪的问题，想请教下各位：

我在尝试构建镜像时，apt-get update总是失败，提示无法解析域名，但容器的网络明明正常，DNS配置也没问题，甚至用wget拉取同一个URL的文件都完全正常！

以下是我的终端操作和输出：

❯ docker run -i -t python /bin/bash

root@e0264555b919:/# apt-get update
Err:1 http://deb.debian.org/debian bullseye InRelease
  Temporary failure resolving 'deb.debian.org'
Err:2 http://deb.debian.org/debian-security bullseye-security InRelease
  Temporary failure resolving 'deb.debian.org'
Err:3 http://deb.debian.org/debian bullseye-updates InRelease
  Temporary failure resolving 'deb.debian.org'
Reading package lists... Done
W: Failed to fetch http://deb.debian.org/debian/dists/bullseye/InRelease  Temporary failure resolving 'deb.debian.org'
W: Failed to fetch http://deb.debian.org/debian-security/dists/bullseye-security/InRelease  Temporary failure resolving 'deb.debian.org'
W: Failed to fetch http://deb.debian.org/debian/dists/bullseye-updates/InRelease  Temporary failure resolving 'deb.debian.org'
W: Some index files failed to download. They have been ignored, or old ones used instead.

root@e0264555b919:/# wget http://deb.debian.org/debian/dists/bullseye-updates/InRelease
--2023-01-07 11:50:33--  http://deb.debian.org/debian/dists/bullseye-updates/InRelease
Resolving deb.debian.org (deb.debian.org)... 151.101.62.132, 2a04:4e42:f::644
Connecting to deb.debian.org (deb.debian.org)|151.101.62.132|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 44066 (43K)
Saving to: ‘InRelease’

InRelease                   100%[==========================================>]  43.03K  --.-KB/s    in 0.01s

2023-01-07 11:50:33 (3.84 MB/s) - ‘InRelease’ saved [44066/44066]

root@e0264555b919:/# head InRelease
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Origin: Debian
Label: Debian
Suite: stable-updates
Version: 11-updates
Codename: bullseye-updates
Date: Sat, 07 Jan 2023 08:40:57 UTC
Valid-Until: Sat, 14 Jan 2023 08:40:57 UTC

root@e0264555b919:/# cat /etc/resolv.conf
nameserver 8.8.8.8
nameserver 1.1.1.1
root@e0264555b919:/#

有没有大佬知道这到底是怎么回事？我试了好几个基于Debian的镜像，都是同样的问题！

备注：内容来源于stack exchange，提问作者AntouanK