Attributes: As discussed earlier in Fundamentals, attributes are not clearly demarcated from child elements in a UML diagram.

属性：如同前面在基础知识中所讨论的那样，在uml图中属性和子元素之间并没有清晰的界线。

youdao

It does this through the promise of lifetime employment, through clearly demarcated promotion based on seniority, and through well-defined hierarchies of decision making.

FORBES: The Choices for Japanese Youth

Heroes and villains are clearly demarcated.

ECONOMIST: Anti-tobacco campaign