deb http://mirrors.aliyun.com/debian wheezy main contrib non-free  
deb-src http://mirrors.aliyun.com/debian wheezy main contrib non-free  
deb http://mirrors.aliyun.com/debian wheezy-updates main contrib non-free  
deb-src http://mirrors.aliyun.com/debian wheezy-updates main contrib non-free  
deb http://mirrors.aliyun.com/debian-security wheezy/updates main contrib non-free  
deb-src http://mirrors.aliyun.com/debian-security wheezy/updates main contrib non-free 