apt安装软件时报错

Temporary failure resolving 'us.archive.ubuntu.com' Err:3 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 libimlib2 amd64 1.4.10-1

解决办法：https://askubuntu.com/questions/91543/apt-get-update-fails-to-fetch-files-temporary-failure-resolving-error