If you're using interfaces, the command opens the declaration of the element - which is an interface.

如果您正在使用接口，则该命令会打开元素的声明—它是一个接口。

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Using every declaration just once means making strict use of selector grouping.

每种声明只使用一次意味着对选择器进行更加严格的分组。

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In our experience, using every declaration just once can reduce the CSS file size by 20-40% on average.

根据我们的经验，如果每种声明只使用一次的话，平均可以使得CSS文件的大小减少20 - 40%。

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Palestinian officials have denied reports that Mr Arafat contemplated using that speech to take the drastic step of a unilateral declaration of Palestinian statehood.

ECONOMIST: Looking beyond Arafat | The

They are protected by the full faith and credit of the United States and preventing default is no less justified than using American military power to protect against an armed invasion without a congressional declaration of war.

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