sources.list.163

deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
#deb-src http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse