应该能够在输入字段中输入内容，按下tab键后可以看到图3所示的结果。
You should be able to type into the input field, press the Tab key, and then see the result shown in Figure 3.
按Print screen键就会不带选项地调用gnome - screenshot应用程序，这捕获整个屏幕并显示图2所示的对话框。
Pressing the Print screen key invokes the gnome-screenshot application with no options, captures the entire screen, and displays the dialog shown in Figure 2.
如图7所示，默认值是不包含其他参数，可以按enter键跳过这个选项。
As shown in Figure 7, the default is no additional arguments and you can press Enter to skip this option.
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