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。

youdao

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。

youdao

In fact, since "using every declaration just once" might mean a higher number of selectors, this could even result in a bigger style sheet.

事实上，应用“每种声明只使用一次”的规则，很可能造成更多数量的选择器，从而使得文件更大。

youdao