If your persona set implicitly contains a requirement for interoperability with screen readers, you could anticipate this problem by doing a check against requirements before making the change.

如果您的角色集隐含地包含了对与屏幕阅读器互通性的需求，您可以在变更、之前通过检查需求来预料该问题。

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To do this, click the check box for the requirement(s) that you do not want to import.

操作如下：点击您想要导入需求的文件夹前的复选框。

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Please check before you attempt to do this that you have a numeric keypad, as this is the only requirement for this.

请检查之前，您试图这样做，你有一个数字键盘，因为这是唯一的要求这样做。

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South Africa has passed tough legislation that includes a requirement for a thorough background check for prospective gun owners.

CNN: February 17, 2013 -- Updated 0449 GMT (1249 HKT)

Or for Romney to claim that Obama plans to give welfare recipients a check without any work requirement, when he does not?

FORBES: Are There Questions Political Reporters Shouldn't Try to Answer?