安装fcitx5-module-punctuation-dev失败，apt-get update尝试了多次依然没有效果，能否提供有效的解决方案，感谢！！
系统环境：
System Summary
version 21.04 (Hirsute Hippo)
Copyright 2009-2021 @Kylinos All rights
reserved
Kernel linux5.11.0-41-generic
CPU 11th Gen Intel(R) Core™ I5-1135G7 @ 2.40GHz
Memory 2 GB(1.9 GB available)
Disk Disk1: 21 GB
下面是安装失败的日志：
sudo apt-get install fcitx5-module-punctuation-dev
Reading package lists… Done
Building dependency tree… Done
Reading state information… Done
The following additional packages will be installed:
fcitx5-chinese-addons-data fcitx5-module-punctuation
libfcitx5config6 libfcitx5core7 libfcitx5utils2
The following NEW packages will be installed:
fcitx5-chinese-addons-data fcitx5-module-punctuation
fcitx5-module-punctuation-dev libfcitx5config6 libfcitx5core7
libfcitx5utils2
0 upgraded, 6 newly installed, 0 to remove and 144 not upgraded.
Need to get 542 kB of archives.
After this operation, 1,995 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Ign:1 http://us.archive.ubuntu.com/ubuntu hirsute/universe amd64 fcitx5-chinese-addons-data all 5.0.4-1
Err:2 http://us.archive.ubuntu.com/ubuntu hirsute/universe amd64 libfcitx5utils2 amd64 5.0.5-1
Connection failed [IP: 91.189.91.39 80]
Err:3 http://us.archive.ubuntu.com/ubuntu hirsute/universe amd64 libfcitx5config6 amd64 5.0.5-1
Connection failed [IP: 91.189.91.39 80]
Err:4 http://us.archive.ubuntu.com/ubuntu hirsute/universe amd64 libfcitx5core7 amd64 5.0.5-1
Connection failed [IP: 91.189.91.39 80]
Err:5 http://us.archive.ubuntu.com/ubuntu hirsute/universe amd64 fcitx5-module-punctuation amd64 5.0.4-1
Connection failed [IP: 91.189.91.39 80]
Err:6 http://us.archive.ubuntu.com/ubuntu hirsute/universe amd64 fcitx5-module-punctuation-dev amd64 5.0.4-1
Connection failed [IP: 91.189.91.39 80]
Err:1 http://us.archive.ubuntu.com/ubuntu hirsute/universe amd64 fcitx5-chinese-addons-data all 5.0.4-1
Connection failed [IP: 91.189.91.38 80]
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx5-chinese-addons/fcitx5-chinese-addons-data_5.0.4-1_all.deb Connection failed [IP: 91.189.91.38 80]
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx5/libfcitx5utils2_5.0.5-1_amd64.deb Connection failed [IP: 91.189.91.39 80]
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx5/libfcitx5config6_5.0.5-1_amd64.deb Connection failed [IP: 91.189.91.39 80]
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx5/libfcitx5core7_5.0.5-1_amd64.deb Connection failed [IP: 91.189.91.39 80]
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx5-chinese-addons/fcitx5-module-punctuation_5.0.4-1_amd64.deb Connection failed [IP: 91.189.91.39 80]
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx5-chinese-addons/fcitx5-module-punctuation-dev_5.0.4-1_amd64.deb Connection failed [IP: 91.189.91.39 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?