Ubuntu 默认安装的是 ibus 1.2.0 ,使用 ibus-dev ppa 更新到 ibus 1.3.3,主页:http://zh.netlog.com/go/out/url=https%3A%2F%2Flaunchpad.net%2F~ibus-dev%2F%2Barchive%2Fibus-1.3-lucid
sudo add-apt-repository ppa:ibus-dev/ibus-1.3-lucid
sudo apt-get update
sudo apt-get install ibus
sudo apt-get install ibus-sunpinyin
sudo apt-get install ibus-table-wubi