The tool switches modes automatically if it is not able to start GUI.
如果无法启动GUI，工具会自动地切换模式。
2
To avoid surprises, start with command-line options and then read files specified by the command-line switches.
为了避免惊讶，从命令行开始，然后读取通过命令行开关指定的文件。
3
Scientists have even engineered artificial switches to start glowing or giving off some kind of electrochemical or biochemical signal once they are switched "on."