按这种区分，XML模式文档是添加新属性或者元素声明的XML文档。

For this distinction, an XML schema document is an XML document that adds new attribute or element declarations.

youdao

按这种区分，XML模式文档是添加新属性或者元素声明的XML文档。

For this distinction, an XML schema document is an XML document that adds new attribute or element declarations.

youdao