回帖：deb http://mirrors.aliyun.com/debian/ buster main contrib non-free
deb-src http://mirrors.aliyun.com/debian/ buster main contrib non-free
deb http://mirrors.aliyun.com/debian-security/ buster/updates main contrib non-free
deb-src http://mirrors.aliyun.com/debian-security/ buster/updates main contrib non-free
deb http://mirrors.aliyun.com/debian/ buster-updates main contrib non-free
deb-src http://mirrors.aliyun.com/debian/ buster-updates main contrib non-free
deb http://mirrors.aliyun.com/debian/ buster-backports main contrib non-free
deb-src http://mirrors.aliyun.com/debian/ buster-backports main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian-security/ buster/updates main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security/ buster/updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free