deb http://debian.cn99.com/debian stable main non-free contrib
#deb http://debian.cn99.com/debian-non-US stable/non-US main contrib non-free
#deb http://debian.cn99.com/debian proposed-updates main contrib non-free
#deb http://debian.cn99.com/debian-non-US proposed-updates/non-US main contrib non-free
deb http://debian.cn99.com/debian-security woody/updates main contrib non-free