你可以随心所欲的安装或者移除软件包，选择在你的系统上安装自由软件还是非自由软件。
You can install and remove packages as and when you want to, and you can choose whether to install free or non-free software on your system.
你可以随心所欲的安装或者移除软件包，选择在你的系统上安装自由软件还是非自由软件。
You can install and remove packages as and when you want to, and you can choose whether to install free or non-free software on your system.
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