If it doesn't, then you need to press a key on your keyboard right when you turn it on.
如果没有的话，在你启动电脑的时候，需要按一个键。
If you press a key to interrupt the default boot, you will see a menu of choices similar to that in Figure 6.
如果您按任意键中断默认启动，将会看到一个类似于图6的选项菜单。
If there is an error when the batch file runs, the command prompt displays the error message until you press a key.
在批文件运行时如果发生了什么错误，命令提示行会显示错误信息，直到您按下一个键为止。
The classic example is a GUI where your program must respond when the user does something like press a key or move the mouse.
经典的例子便是GUI，程序必须响应用户的某些行为，比如按键或是鼠标移动。
In the second phase of the experiment, researchers played 15 different sounds for the participants and asked them to press a key when they heard a sound they recognized from the training phase.
在实验第二阶段，研究人员们给参与者们播放了15种不同的声音，并让他们在认出训练阶段中听到的声音之后按下按钮。
In the second phase of the experiment, researchers played 15 different sounds for the participants and asked them to press a key when they heard a sound they recognized from the training phase.
在实验第二阶段，研究人员们给参与者们播放了15种不同的声音，并让他们在认出训练阶段中听到的声音之后按下按钮。
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