本文仅做参考。
在系统管理中选Language Support，然后在列表当中选择Chinese并将语言修改为Chinese，然后就Apply，系统会自动的下载语言，过一会就行了，重启后你就发现原来看不懂的英文现在变为了中文，如果在Language Support中你没有看到Chinese，那你可能是断网来安装Ubuntu的，需要更新，改源，备份列表，输入
sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup
然后编辑一下列表，输入
sudo gedit /etc/apt/sources.list
把里面的内容都删除，换上，不一定管用
电信用户:
deb http://ubuntu.cn99.com/ubuntu/ feisty main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ feisty-security main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ feisty-updates main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ feisty-proposed main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ feisty-backports main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ feisty main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ feisty-security main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ feisty-updates main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ feisty-proposed main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ feisty-backports main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu-cn/ feisty main restricted universe multiverse
网通校园网用户:
deb http://ubuntu.uestc.edu.cn/ubuntu/ feisty main multiverse restricted universe
deb http://ubuntu.uestc.edu.cn/ubuntu/ feisty-backports main multiverse restricted universe
deb http://ubuntu.uestc.edu.cn/ubuntu/ feisty-proposed main multiverse restricted universe
deb http://ubuntu.uestc.edu.cn/ubuntu/ feisty-security main multiverse restricted universe
deb http://ubuntu.uestc.edu.cn/ubuntu/ feisty-updates main multiverse restricted universe
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ feisty main multiverse restricted universe
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ feisty-backports main multiverse restricted universe
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ feisty-proposed main multiverse restricted universe
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ feisty-security main multiverse restricted universe
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ feisty-updates main multiverse restricted universe
deb http://ubuntu.uestc.edu.cn/ubuntu-cn/ feisty main multiverse restricted universe
保存后运行
sudo apt-get update
sudo apt-get dist-upgrade
更新过后你就会看到Chinese了。
