Deciding to run a marathon if you've never so much as walked half a mile-or to lose 50 pounds in only two months-is setting yourself up for the type of failure that will only make you want to give up.

半英里都还没走过就想跑马拉松，或是两个月内就想减掉50磅肉，这些计划终究要泡汤，只能使你放弃目标。

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Now we can start setting up a GUI, and a vital component is the X.org. Type in the following to install the binary package.

现在你可以开始建立一个图形用户界面(GUI)，一个重要的组件就是X.org，在下面输入命令来安装二进制包。

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In addition to simple lists of commands, you can use the menu element to create a toolbar or pop-up context menu by setting the type attribute to toolbar or popup.

除了简单的命令列表之外，还可以使用menu元素创建工具栏或弹出式上下文菜单，这需要将type属性设置为toolbar或popup。

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