The real test, of course, is to actually print your Web page.

当然，真正的测试是实际打印web页面。

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You must install a printer before you can print a test page.

您必须先安装打印机，才能打印测试页。

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You must install a printer before you can print a test page.

您必须先安装打印机，才能打印测试页。

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