Click the green arrow at left to execute the command.

单击左侧的绿色箭头来执行命令。

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To create a new database called "student", enter this command in the command pane and click the Execute (green arrow) button.

要创建一个名为“student”的新数据库，请在命令窗格中输入此命令，并单击Execute(绿色箭头)按钮。

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For example, the command "erase" makes the arrow 's image disappear and "display" makes it reappear.

例如，指令“擦除”会使箭头的图象消失而指令“显示”又会使它重现。

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